Tuesday, October 25, 2016

Vicalvit D




Vicalvit D may be available in the countries listed below.


Ingredient matches for Vicalvit D



Calcium Carbonate

Calcium Carbonate is reported as an ingredient of Vicalvit D in the following countries:


  • Poland

Colecalciferol

Colecalciferol is reported as an ingredient of Vicalvit D in the following countries:


  • Poland

International Drug Name Search

Soldesanil




Soldesanil may be available in the countries listed below.


Ingredient matches for Soldesanil



Dexamethasone

Dexamethasone phosphate (a derivative of Dexamethasone) is reported as an ingredient of Soldesanil in the following countries:


  • Greece

International Drug Name Search

Diralon




Diralon may be available in the countries listed below.


Ingredient matches for Diralon



Diclofenac

Diclofenac sodium salt (a derivative of Diclofenac) is reported as an ingredient of Diralon in the following countries:


  • Venezuela

International Drug Name Search

estradiol valerate and dienogest


es-tra-DYE-ol VAL-er-ate, dye-EN-oh-jest, es-tra-DYE-ol VAL-er-ate, dye-EN-oh-jest, es-tra-DYE-ol VAL-er-ate, es-tra-DYE-ol VAL-er-ate


Oral route(Tablet)

Cigarette smoking increases the risk of serious cardiovascular events from combination oral contraceptive (COC) use; this risk increases in women who are over 35 years of age and with number of cigarettes smoked. COCs should not be used by women who are over 35 years of age and smoke .



Commonly used brand name(s)

In the U.S.


  • Natazia

Uses For estradiol valerate and dienogest


Estradiol valerate and dienogest combination is used to prevent pregnancy. It is a birth control pill that contains two types of hormones, estrogens and progestins and, when taken properly, prevents pregnancy. It works by stopping a woman's egg from fully developing each month. The egg can no longer accept a sperm and fertilization is prevented.


No contraceptive method is 100 percent effective. Birth control methods such as having surgery to become sterile or not having sex are more effective. Discuss with your doctor your options for birth control.


Estradiol valerate and dienogest combination does not prevent AIDS or other sexually transmitted diseases. It will not help as emergency contraception, such as after unprotected sexual contact.


estradiol valerate and dienogest is available only with your doctor's prescription.


Before Using estradiol valerate and dienogest


In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For estradiol valerate and dienogest, the following should be considered:


Allergies


Tell your doctor if you have ever had any unusual or allergic reaction to estradiol valerate and dienogest or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.


Pediatric


Appropriate studies on the relationship of age to the effects of estradiol valerate and dienogest combination have not been performed in the pediatric population. However, pediatric-specific problems that would limit the usefulness of this medication in teenagers are not expected. estradiol valerate and dienogest may be used for birth control in teenage females but is not indicated before the start of menstruation.


Geriatric


Appropriate studies on the relationship of age to the effects of estradiol valerate and dienogest combination have not been performed in the geriatric population. estradiol valerate and dienogest is not indicated for use in elderly women.


Pregnancy








Pregnancy CategoryExplanation
All TrimestersXStudies in animals or pregnant women have demonstrated positive evidence of fetal abnormalities. This drug should not be used in women who are or may become pregnant because the risk clearly outweighs any possible benefit.

Breast Feeding


There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.


Interactions with Medicines


Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking estradiol valerate and dienogest, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.


Using estradiol valerate and dienogest with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.


  • Isotretinoin

  • Theophylline

  • Tizanidine

  • Tranexamic Acid

Using estradiol valerate and dienogest with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.


  • Alprazolam

  • Amoxicillin

  • Ampicillin

  • Amprenavir

  • Aprepitant

  • Atazanavir

  • Bacampicillin

  • Betamethasone

  • Bexarotene

  • Bosentan

  • Carbamazepine

  • Clarithromycin

  • Colesevelam

  • Cyclosporine

  • Darunavir

  • Delavirdine

  • Doxycycline

  • Efavirenz

  • Etravirine

  • Fosamprenavir

  • Fosaprepitant

  • Fosphenytoin

  • Ginseng

  • Griseofulvin

  • Itraconazole

  • Ketoconazole

  • Lamotrigine

  • Levothyroxine

  • Licorice

  • Minocycline

  • Modafinil

  • Mycophenolate Mofetil

  • Mycophenolic Acid

  • Nelfinavir

  • Nevirapine

  • Oxcarbazepine

  • Oxytetracycline

  • Phenobarbital

  • Phenytoin

  • Pioglitazone

  • Prednisolone

  • Primidone

  • Rifabutin

  • Rifampin

  • Rifapentine

  • Ritonavir

  • Rosuvastatin

  • Rufinamide

  • Selegiline

  • St John's Wort

  • Tacrine

  • Telaprevir

  • Tetracycline

  • Tipranavir

  • Topiramate

  • Troglitazone

  • Troleandomycin

  • Voriconazole

  • Warfarin

Interactions with Food/Tobacco/Alcohol


Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.


Using estradiol valerate and dienogest with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use estradiol valerate and dienogest, or give you special instructions about the use of food, alcohol, or tobacco.


  • Caffeine

  • Grapefruit Juice

Other Medical Problems


The presence of other medical problems may affect the use of estradiol valerate and dienogest. Make sure you tell your doctor if you have any other medical problems, especially:


  • Abnormal or unusual vaginal bleeding or

  • Bleeding problems, or history of or

  • Breast cancer, known or suspected, or a history of or

  • Cancer of the uterus or cervix or

  • Diabetes with kidney, eye, or blood vessel damage or

  • Heart attack, history of or

  • Heart or blood vessel disease or

  • Heart rhythm problems or

  • Hypertension (high blood pressure), uncontrolled or

  • Jaundice (yellow eyes or skin) during pregnancy or from using hormonal therapy in the past or

  • Liver disease, including tumors or cancer or

  • Migraine headache, new or worse or a new kind of headache or

  • Problems with circulation or blood clots, now or in the past or

  • Problems with heart valves or

  • Stroke, history of—Should not be used in patients with these conditions.

  • Angioedema (swelling of the face, tongue, or throat), inherited or

  • Depression, history of or

  • Diabetes or

  • Dyslipidemia (high cholesterol or fats in the blood) or

  • Gallbladder disease or

  • Hypertension (high blood pressure), controlled—Use with caution. May make these conditions worse.

Proper Use of estradiol valerate and dienogest


To make using hormonal contraceptives as safe and reliable as possible, you should understand how and when to use them and what effects may be expected.


estradiol valerate and dienogest comes with patient instructions. Read and follow these instructions carefully. Ask your doctor or pharmacist if you have any questions.


estradiol valerate and dienogest is available in blister packs. Each blister pack contains 28 tablets with different colors that need to be taken in the same order as directed on the blister pack.


When you begin using estradiol valerate and dienogest, your body will require at least 9 days to adjust before a pregnancy will be prevented. Use a second form of contraception, such as a condom, spermicide, or diaphragm, for the first 9 days of your first cycle of pills.


Take estradiol valerate and dienogest at the same time each day, such as after the evening meal or at bedtime. Do not skip or delay taking your pill by more than 12 hours. If you miss a dose, you could get pregnant. Ask your doctor for ways to help you remember to take your pills, or about using another method of birth control.


You may have light bleeding or spotting when you first take the pill.


You may feel sick or nauseous, especially during the first few months that you take estradiol valerate and dienogest. If your nausea is continuous and does not go away, call your doctor.


If you vomit or have diarrhea within 3 to 4 hours of taking estradiol valerate and dienogest, follow the instructions in the patient leaflet or call your doctor.


If you are switching from a combination hormonal method (e.g., another pill, patch, vaginal ring) to using Natazia®, take the first dark yellow pill on the first day of your period. If you do not start your period, see your doctor for a pregnancy test. If you have used a vaginal ring or patch, take the pill on the day the ring or patch is removed. You must also use a second method of birth control (e.g., condom, diaphragm, spermicide) for the first 9 days you take estradiol valerate and dienogest.


If you are switching from a progestin-only method (e.g., progestin-only pill, implant, injection, intrauterine system) to using Natazia®, take the first dark yellow pill on the day you would have taken your next progestin-only pill, or on the day your implant or IUD is removed, or on the day you would have your next injection. You must also use a second method of birth control (e.g., condom, diaphragm, spermicide) for the first 9 days you take estradiol valerate and dienogest.


Do not eat grapefruit or drink grapefruit juice while you are using estradiol valerate and dienogest.


Dosing


The dose of estradiol valerate and dienogest will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of estradiol valerate and dienogest. If your dose is different, do not change it unless your doctor tells you to do so.


The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.


Your doctor may ask you to begin your dose on the first day of your menstrual period (called Day 1). When you begin on a certain day it is important that you follow that schedule, even if you miss a dose. Do not change your schedule on your own. If the schedule that you use is not convenient, check with your doctor about changing it.


  • For oral dosage form (tablets):
    • For contraception (to prevent pregnancy):
      • Adults and teenagers—One tablet taken at the same time each day for 28 days.

      • Children—Use and dose must be determined by your doctor.



Missed Dose


Call your doctor or pharmacist for instructions.


Storage


Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.


Keep out of the reach of children.


Do not keep outdated medicine or medicine no longer needed.


Ask your healthcare professional how you should dispose of any medicine you do not use.


Precautions While Using estradiol valerate and dienogest


It is very important that your doctor check your progress at regular visits to make sure estradiol valerate and dienogest is working properly and does not cause unwanted effects. These visits will usually be every 6 to 12 months, but some doctors require them more often.


Although you are using estradiol valerate and dienogest to prevent pregnancy, you should know that using estradiol valerate and dienogest while you are pregnant could harm the unborn baby. If you suspect that you may be pregnant, stop using estradiol valerate and dienogest immediately and check with your doctor.


Vaginal bleeding of various amounts may occur between your regular menstrual periods during the first 3 months of use. This is sometimes called spotting when slight, or breakthrough bleeding when heavier.


  • If this should occur, continue with your regular dosing schedule.

  • The bleeding usually stops within 1 week. Check with your doctor if the bleeding continues for more than 1 week.

  • If bleeding continues after you have been taking hormonal contraceptives on schedule and for more than 3 months, check with your doctor.

Check with your doctor right away if you miss a menstrual period. Missed periods may occur if you skip one or more tablets and have not taken your pills exactly as directed. If you miss two periods in a row, talk to your doctor. You might need a pregnancy test.


Do not use estradiol valerate and dienogest if you smoke cigarettes or if you are over 35 years old. If you smoke while using birth control pills, you increase your risk of having a heart attack, stroke, or blood clot. Your risk is even higher if you are over age 35, if you have diabetes, high blood pressure, high cholesterol, or if you are overweight. Talk with your doctor about ways to stop smoking. Keep your diabetes under control. Ask your doctor about diet and exercise to control your weight and blood cholesterol level.


Stop using estradiol valerate and dienogest and check with your doctor right away if you have pain in the chest, groin, or legs, especially the calves; difficulty with breathing; a sudden, severe headache; slurred speech; a sudden, unexplained shortness of breath; a sudden loss of coordination; or vision changes while using estradiol valerate and dienogest.


Check with your doctor immediately if you have problems wearing contact lenses or if blurred vision, difficulty with reading, or any other change in vision occurs during or after treatment. Your doctor may want you to have your eyes checked by an ophthalmologist (eye doctor).


Stop using estradiol valerate and dienogest and check with your doctor right away if you have pain or tenderness in the upper stomach; pale stools; dark urine; loss of appetite; nausea; unusual tiredness or weakness; or yellow eyes or skin. These could be symptoms of a serious liver problem.


estradiol valerate and dienogest may not work as well in women who are overweight. If you gain a lot of weight after you start taking estradiol valerate and dienogest, ask your doctor if you should change to another type of birth control pill.


Check with your doctor before refilling an old prescription, especially after a pregnancy. You will need another physical examination and your doctor may change your prescription.


Make sure any doctor or dentist who treats you knows that you are using estradiol valerate and dienogest. You may need to stop using estradiol valerate and dienogest several days before having surgery or certain medical tests.


Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal (e.g., St. John's wort) or vitamin supplements.


estradiol valerate and dienogest Side Effects


Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.


Check with your doctor immediately if any of the following side effects occur:


More common
  • Breast pain, discomfort, or tenderness

  • headache, severe and throbbing

  • irregular menstrual periods

  • nausea

  • normal menstrual bleeding occurring earlier, possibly lasting longer than expected

  • vomiting

Rare
  • Abdominal or stomach pain

  • chills

  • clay-colored stools

  • dark urine

  • difficulty with breathing

  • dizziness

  • fever

  • headache

  • itching

  • loss of appetite

  • pain in the chest, groin, or legs, especially the calves

  • rash

  • slurred speech

  • sudden loss of coordination

  • sudden, severe weakness or numbness in the arm or leg

  • sudden, unexplained shortness of breath

  • unpleasant breath odor

  • unusual tiredness or weakness

  • vision changes

  • vomiting of blood

  • yellow eyes or skin

Incidence not known
  • Abdominal or stomach bloating

  • blood in the stool

  • chest pain or discomfort

  • pain or discomfort in the arms, jaw, back, or neck

  • pain, redness, or swelling in the arm or leg

  • pelvic pain

  • shortness of breath

  • stomach or pelvic discomfort, aching, or heaviness

  • sweating

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:


Less common
  • Blemishes on the skin

  • increased weight

  • pimples

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.


Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.



The information contained in the Thomson Reuters Micromedex products as delivered by Drugs.com is intended as an educational aid only. It is not intended as medical advice for individual conditions or treatment. It is not a substitute for a medical exam, nor does it replace the need for services provided by medical professionals. Talk to your doctor, nurse or pharmacist before taking any prescription or over the counter drugs (including any herbal medicines or supplements) or following any treatment or regimen. Only your doctor, nurse, or pharmacist can provide you with advice on what is safe and effective for you.


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More estradiol valerate and dienogest resources


  • Estradiol valerate and dienogest Use in Pregnancy & Breastfeeding
  • Estradiol valerate and dienogest Drug Interactions
  • Estradiol valerate and dienogest Support Group
  • 9 Reviews for Estradiol valerate and dienogest - Add your own review/rating


Compare estradiol valerate and dienogest with other medications


  • Birth Control

Monday, October 24, 2016

Depo Eligard




Depo Eligard may be available in the countries listed below.


Ingredient matches for Depo Eligard



Leuprorelin

Leuprorelin acetate (a derivative of Leuprorelin) is reported as an ingredient of Depo Eligard in the following countries:


  • Belgium

  • Luxembourg

International Drug Name Search

Amoxicillin Tablets for Suspension




Dosage Form: tablet, for suspension
Amoxicillin Tablets for Oral Suspension, USP


To reduce the development of drug-resistant bacteria and maintain the effectiveness of amoxicillin tablets for oral suspension and other antimicrobial drugs, amoxicillin tablets for oral suspension should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.

Amoxicillin Tablets for Suspension Description




Amoxicillin tablets for oral suspension contain amoxicillin, a semisynthetic antibiotic, an analog of ampicillin, with a broad spectrum of bactericidal activity against many gram-positive and gram-negative microorganisms. Chemically it is (2S, 5R, 6R)-6-[(R)-(-)-2-amino-2-(p-hydroxyphenyl) acetamido]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo [3.2.0] heptane-2-carboxylic acid trihydrate. The structural formula is:



The amoxicillin molecular formula is C16H19N3O5S • 3H2O, and the molecular weight is 419.45.


Amoxicillin tablets for oral suspension are intended for oral administration.

 

Each amoxicillin tablet for oral suspension contains amoxicillin trihydrate equivalent to amoxicillin anhydrous 200 mg or 400 mg.  Inactive ingredients:  aspartame•, colloidal silicon dioxide, croscarmellose sodium, FD&C Red no. 40 aluminium lake, magnesium stearate, microcrystalline cellulose and strawberry guarana flavor.

 
  • See PRECAUTIONS


Amoxicillin Tablets for Suspension - Clinical Pharmacology




Amoxicillin is stable in the presence of gastric acid and is rapidly absorbed after oral administration. The effect of food on the absorption of amoxicillin from conventional amoxicillin tablets and conventional amoxicillin suspension has been partially investigated. The 400 mg and 875 mg formulations have been studied only when administered at the start of a light meal. However, food effect studies have not been performed with the 200 mg and 500 mg formulations. Amoxicillin diffuses readily into most body tissues and fluids, with the exception of brain and spinal fluid, except when meninges are inflamed. The half-life of amoxicillin is 61.3 minutes. Most of the amoxicillin is excreted unchanged in the urine; its excretion can be delayed by concurrent administration of probenecid. In blood serum, amoxicillin is approximately 20% protein-bound.


Orally administered doses of 250 mg and 500 mg amoxicillin capsules result in average peak blood levels 1 to 2 hours after administration in the range of 3.5 mcg/mL to 5 mcg/mL and 5.5 mcg/mL to 7.5 mcg/mL, respectively.

 

Mean amoxicillin pharmacokinetic parameters from an open, two-part, single-dose crossover bioequivalence study in 27 adults comparing 875 mg conventional tablets of amoxicillin with 875 mg conventional tablets of amoxicillin/clavulanate potassium showed that the 875 mg conventional tablet of amoxicillin produces an AUC0-∞ of 35.4 ± 8.1 mcg.hr./mL and a Cmax of 13.8 ± 4.1 mcg/mL. Dosing was at the start of a light meal following an overnight fast.


Conventional amoxicillin chewable tablets, 125 mg and 250 mg, produced blood levels similar to those achieved with corresponding doses of conventional amoxicillin oral suspensions. Orally administered doses of conventional amoxicillin suspension, 125 mg/5 mL and 250 mg/5 mL, result in average peak blood levels 1 to 2 hours after administration in the range of 1.5 mcg/mL to 3 mcg/mL and 3.5 mcg/mL to 5 mcg/mL, respectively.

 

Oral administration of single doses of 400 mg conventional amoxicillin chewable tablets and 400 mg/5 mL conventional suspension to 24 adult volunteers yielded comparable pharmacokinetic data:













†  Administered at the start of a light meal.

‡ Mean values of 24 normal volunteers. Peak concentrations occurred approximately 1 hour after the dose.
Dose†
   AUC0-∞ (mcg.hr./mL)   
   Cmax (mcg/mL)‡   
   amoxicillin
amoxicillin

(±SD)
amoxicillin

(±SD)
   400 mg (5 mL of suspension)   
17.1 (3.1)
5.92 (1.62)
   400 mg (1 chewable tablet)
17.9 (2.4)
5.18 (1.64)


Detectable serum levels are observed up to 8 hours after an orally administered dose of amoxicillin. Following a 1 gram dose and utilizing a special skin window technique to determine levels of the antibiotic, it was noted that therapeutic levels were found in the interstitial fluid. Approximately 60% of an orally administered dose of amoxicillin is excreted in the urine within 6 to 8 hours.

 

The following pharmacokinetic data is from Ranbaxy’s study of DisperMox™ tablets and conventional amoxicillin oral suspension, 400 mg/5 mL.

 

The dispersed mixture of DisperMox™ tablets, 400 mg, produced blood levels similar to those achieved with the corresponding doses of conventional amoxicillin oral suspensions. Orally administered doses of conventional amoxicillin suspension, 400 mg/5 mL, result in average peak blood levels 1 to 2 hours after administration in the range of 3.3 mcg/mL to 11.5 mcg/mL. Orally administered doses of 400 mg DisperMox™ tablets result in average peak blood levels 1 to 2 hours after administration in the range of 3.2 mcg/mL to 11.5 mcg/mL.

 

Oral administration of single doses of 400 mg DisperMox™ tablets and 400 mg/5 mL conventional suspension to 24 adult volunteers yielded comparable pharmacokinetic data:













¶   Dosing was following an overnight fast.

†† Mean values of 24 normal volunteers.  Peak concentrations occurred approximately 1 hour after the dose.
Dose¶
AUC0-∞ (mcg.hr./mL)
Cmax (mcg/mL)††
   amoxicillin
amoxicillin
amoxicillin
   400 mg (5 mL of suspension)
18.5
8.4
   400 mg (one tablet for oral suspension)
17.9
7.5

Microbiology




Amoxicillin is similar to ampicillin in its bactericidal action against susceptible organisms during the stage of active multiplication. It acts through the inhibition of biosynthesis of cell wall mucopeptide. Amoxicillin has been shown to be active against most strains of the following microorganisms, both in vitro and in clinical infections as described in the INDICATIONS AND USAGE section. Aerobic gram-positive microorganisms

Enterococcus faecalis

Staphylococcus spp.† (β-lactamase-negative strains only)

Streptococcus pneumoniae

Streptococcus spp. (α- and β-hemolytic strains only)

†  Staphylococci which are susceptible to amoxicillin but resistant to methicillin/oxacillin     

  should be considered as resistant to amoxicillin.


Aerobic gram-negative microorganisms:

Escherichia coli (β-lactamase-negative strains only)

Haemophilus influenzae (β-lactamase-negative strains only)

Neisseria gonorrhoeae (β-lactamase-negative strains only)

Proteus mirabilis (β-lactamase-negative strains only) Helicobacter

Helicobacter pylori Susceptibility tests

Dilution techniques




Quantitative methods are used to determine antimicrobial minimum inhibitory concentrations (MICs). These MICs provide estimates of the susceptibility of bacteria to antimicrobial compounds. The MICs should be determined using a standardized procedure. Standardized procedures are based on a dilution method1 (broth or agar) or equivalent with standardized inoculum concentrations and standardized concentrations of ampicillin powder. Ampicillin is sometimes used to predict susceptibility of Streptococcus pneumoniae to amoxicillin; however, some intermediate strains have been shown to be susceptible to amoxicillin. Therefore, Streptococcus pneumoniae susceptibility should be tested using amoxicillin powder. The MIC values should be interpreted according to the following criteria:


For gram-positive aerobes:


Enterococcus






   MIC (mcg/mL)   
Interpretation
≤ 8
   Susceptible (S)   
≥ 16
   Resistant (R)   


Staphylococcusa






   MIC (mcg/mL)   
   Interpretation   
≤ 0.25
   Susceptible (S)   
≥ 0.5
   Resistant (R)   


Streptococcus (except S. pneumoniae) 








   MIC (mcg/mL)   
   Interpretation   
≤ 0.25
   Susceptible (S)   
0.5 to 4
   Intermediate (I)   
≥ 8
   Resistant (R)   


S. pneumoniaeb from non-meningitis sources.

(Amoxicillin powder should be used to determine susceptibility.)








   MIC (mcg/mL)   
   Interpretation   
≤ 2
   Susceptible (S)
4
   Intermediate (I)   
≥ 8
   Resistant (R)   


Note: These interpretive criteria are based on the recommended doses for respiratory tract infections.


For gram-negative aerobes:


Enterobacteriaceae








   MIC (mcg/mL)   
   Interpretation   
≤ 8
   Susceptible (S)   
16
   Intermediate (I)   
≥ 32
   Resistant (R)   


H. influenzaec








   MIC (mcg/mL)   
   Interpretation   
≤ 1
   Susceptible (S)   
2
   Intermediate (I)   
≥ 4
   Resistant (R)   


a. Staphylococci which are susceptible to amoxicillin but resistant to methicillin/oxacillin should be considered as resistant to amoxicillin.

b. These interpretive standards are applicable only to broth microdilution susceptibility tests using cation-adjusted Mueller-Hinton broth with 2 to 5% lysed horse blood.

c. These interpretive standards are applicable only to broth microdilution test with Haemophilus influenzae using Haemophilus Test Medium (HTM).1

 

A report of “Susceptible” indicates that the pathogen is likely to be inhibited if the antimicrobial compound in the blood reaches the concentrations usually achievable. A report of “Intermediate” indicates that the result should be considered equivocal, and, if the microorganism is not fully susceptible to alternative, clinically feasible drugs, the test should be repeated. This category implies possible clinical applicability in body sites where the drug is physiologically concentrated or in situations where high dosage of drug can be used. This category also provides a buffer zone, which prevents small uncontrolled technical factors from causing major discrepancies in interpretation. A report of “Resistant” indicates that the pathogen is not likely to be inhibited if the antimicrobial compound in the blood reaches the concentrations usually achievable; other therapy should be selected.

 

Standardized susceptibility test procedures require the use of laboratory control microorganisms to control the technical aspects of the laboratory procedures. Standard ampicillin powder should provide the following MIC values:











Microorganism
   MIC (mcg/mL)   
   E. coli                        ATCC 25922   
2 to 8
   E. faecalis                 ATCC 29212
0.5 to 2
   H. influenzae            ATCC 49247d   
2 to 8
   S. aureus                   ATCC 29213   
0.25 to 1


Using amoxicillin to determine susceptibility:




Microorganism
   MIC Range (mcg/mL)   
   S. pneumoniae         ATCC 49619e   
0.03 to 0.12


d. This quality control range is applicable to only H. influenzae ATCC 49247 tested by a broth microdilution procedure using HTM.1

e. This quality control range is applicable to only S. pneumoniae ATCC 49619 tested by the broth microdilution procedure using cation-adjusted Mueller-Hinton broth with 2 to 5% lysed horse blood.

Diffusion techniques




Quantitative methods that require measurement of zone diameters also provide reproducible estimates of the susceptibility of bacteria to antimicrobial compounds. One such standardized procedure2 requires the use of standardized inoculum concentrations. This procedure uses paper disks impregnated with 10 mcg ampicillin to test the susceptibility of microorganisms, except S. pneumoniae, to amoxicillin. Interpretation involves correlation of the diameter obtained in the disk test with the MIC for ampicillin.

 

Reports from the laboratory providing results of the standard single-disk susceptibility test with a 10 mcg ampicillin disk should be interpreted according to the following criteria: 


For gram-positive aerobes:


Enterococcus






   Zone Diameter (mm)   
   Interpretation   
≥ 17
   Susceptible (S)   
≤ 16
   Resistant (R)   

 


Staphylococcusf






   Zone Diameter (mm)   
   Interpretation   
≥ 29
   Susceptible (S)   
≤ 28
   Resistant (R)   


β-hemolytic streptococci








   Zone Diameter (mm)   
   Interpretation   
≥ 26
   Susceptible (S)   
19 to 25
   Intermediate (I)   
≤18
   Resistant  (R)   


NOTE: For streptococci (other than β-hemolytic streptococci and S. pneumoniae), an ampicillin MIC should be determined.


S. pneumoniae


S. pneumoniae should be tested using a 1 mcg oxacillin disk. Isolates with oxacillin zone sizes of ≥20 mm are susceptible to amoxicillin. An amoxicillin MIC should be determined on isolates of S. pneumoniae with oxacillin zone sizes of ≤ 19 mm.


For gram-negative aerobes:

 

Enterobacteriaceae








   Zone Diameter (mm)   
   Interpretation   
≥ 17
   Susceptible  (S)   
14 to 16
   Intermediate (I)   
≤ 13
   Resistant (R)   


H. influenzaeg








   Zone Diameter (mm)   
   Interpretation   
≥ 22
   Susceptible (S)   
19 to 21
   Intermediate (I)   
≤ 18
   Resistant (R)   

f.  Staphylococci which are susceptible to amoxicillin but resistant to methicillin/oxacillin should be considered as resistant to amoxicillin.

g. These interpretive standards are applicable only to disk diffusion susceptibility tests with H. influenzae using Haemophilus Test Medium (HTM).2

 

Interpretation should be as stated above for results using dilution techniques.

 

As with standard dilution techniques, disk diffusion susceptibility test procedures require the use of laboratory control microorganisms. The 10 mcg ampicillin disk should provide the following zone diameters in these laboratory test quality control strains:








Microorganism
Zone Diameter (mm)
E. coli                     ATCC 25922 
16 to 22
  H. influenzae            ATCC 49247h   
13 to 21
  S. aureus                   ATCC 25923 
27 to 35


Using 1 mcg oxacillin disk:




Microorganism
  Zone Diameter (mm) 
  S. pneumoniae          ATCC 49619i 
8 to 12

h. This quality control range is applicable to only H. influenzae ATCC 49247 tested by a disk diffusion procedure using HTM.2

i.  This quality control range is applicable to only S. pneumoniae ATCC 49619 tested by a disk diffusion procedure using Mueller-Hinton agar supplemented with 5% sheep blood and incubated in 5% CO2.

Susceptibility testing for Helicobacter pylori




In vitro susceptibility testing methods and diagnostic products currently available for determining minimum inhibitory concentrations (MICs) and zone sizes have not been standardized, validated, or approved for testing H. pylori microorganisms.

 

Culture and susceptibility testing should be obtained in patients who fail triple therapy. If clarithromycin resistance is found, a non-clarithromycin-containing regimen should be used.

Indications and Usage for Amoxicillin Tablets for Suspension




To reduce the development of drug-resistant bacteria and maintain the effectiveness of amoxicillin tablets for oral suspension and other antibacterial drugs, amoxicillin tablets for oral suspension should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy.  In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

 

Amoxicillin is indicated in the treatment of infections due to susceptible (ONLY β-lactamase-negative) strains of the designated microorganisms in the conditions listed below:

 

Infections of the ear, nose, and throat due to Streptococcus spp. (α- and β-hemolytic strains only), Streptococcus pneumoniae, Staphylococcus spp., or H. influenzae

 

Infections of the genitourinary tract due to E. coli, P. mirabilis, or E. faecalis

 

Infections of the skin and skin structure due to Streptococcus spp. (α- and β-hemolytic strains only), Staphylococcus spp., or E. coli

 

Infections of the lower respiratory tract due to Streptococcus spp. (α- and β-hemolytic strains only), Streptococcus pneumoniae, Staphylococcus spp., or H. influenzae

 

Gonorrhea, acute uncomplicated (ano-genital and urethral infections) due to N. gonorrhoeae (males and females) Therapy may be instituted prior to obtaining results from bacteriological and susceptibility studies to determine the causative organisms and their susceptibility to amoxicillin.

 

Indicated surgical procedures should be performed.

H. pylori eradication to reduce the risk of duodenal ulcer recurrence


Triple therapy: Amoxicillin/clarithromycin/lansoprazole

Amoxicillin, in combination with clarithromycin plus lansoprazole as triple therapy, is indicated for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or one-year history of a duodenal ulcer) to eradicate H. pylori. Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence. (See CLINICAL STUDIES and DOSAGE AND ADMINISTRATION.) Dual therapy: Amoxicillin/lansoprazole

Amoxicillin, in combination with lansoprazole delayed-release capsules as dual therapy, is indicated for the treatment of patients with H. pylori infection and duodenal ulcer disease (active or one year history of a duodenal ulcer) who are either allergic or intolerant to clarithromycin or in whom resistance to clarithromycin is known or suspected. (See the clarithromycin package insert, MICROBIOLOGY.) Eradication of H. pylori has been shown to reduce the risk of duodenal ulcer recurrence. (See CLINICAL STUDIES and DOSAGE AND ADMINISTRATION.)

Contraindications




A history of allergic reaction to any of the penicillins is a contraindication.

Warnings




SERIOUS AND OCCASIONALLY FATAL HYPERSENSITIVITY (ANAPHYLACTIC) REACTIONS HAVE BEEN REPORTED IN PATIENTS ON PENICILLIN THERAPY. ALTHOUGH ANAPHYLAXIS IS MORE FREQUENT FOLLOWING PARENTERAL THERAPY, IT HAS OCCURRED IN PATIENTS ON ORAL PENICILLINS. THESE REACTIONS ARE MORE LIKELY TO OCCUR IN INDIVIDUALS WITH A HISTORY OF PENICILLIN HYPERSENSITIVITY AND/OR A HISTORY OF SENSITIVITY TO MULTIPLE ALLERGENS. THERE HAVE BEEN REPORTS OF INDIVIDUALS WITH A HISTORY OF PENICILLIN HYPERSENSITIVITY WHO HAVE EXPERIENCED SEVERE REACTIONS WHEN TREATED WITH CEPHALOSPORINS. BEFORE INITIATING THERAPY WITH AMOXICILLIN, CAREFUL INQUIRY SHOULD BE MADE CONCERNING PREVIOUS HYPERSENSITIVITY REACTIONS TO PENICILLINS, CEPHALOSPORINS, OR OTHER ALLERGENS. IF AN ALLERGIC REACTION OCCURS, AMOXICILLIN SHOULD BE DISCONTINUED AND APPROPRIATE THERAPY INSTITUTED. SERIOUS ANAPHYLACTIC REACTIONS REQUIRE IMMEDIATE EMERGENCY TREATMENT WITH EPINEPHRINE. OXYGEN, INTRAVENOUS STEROIDS, AND AIRWAY MANAGEMENT, INCLUDING INTUBATION, SHOULD ALSO BE ADMINISTERED AS INDICATED.


Pseudomembranous colitis has been reported with nearly all antibacterial agents, including amoxicillin, and may range in severity from mild to life-threatening. Therefore, it is important to consider this diagnosis in patients who present with diarrhea subsequent to the administration of antibacterial agents.


Treatment with antibacterial agents alters the normal flora of the colon and may permit overgrowth of clostridia. Studies indicate that a toxin produced by Clostridium difficile is a primary cause of “antibiotic-associated colitis.”


After the diagnosis of pseudomembranous colitis has been established, appropriate therapeutic measures should be initiated. Mild cases of pseudomembranous colitis usually respond to drug discontinuation alone. In moderate to severe cases, consideration should be given to management with fluids and electrolytes, protein supplementation, and treatment with an antibacterial drug clinically effective against Clostridium difficile colitis.

Precautions



General




Prescribing amoxicillin tablets for oral suspension in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria.


The possibility of superinfections with mycotic or bacterial pathogens should be kept in mind during therapy. If superinfections occur, amoxicillin should be discontinued and appropriate therapy instituted.

Information for Patients




Patients should be counseled that antibacterial drugs including amoxicillin tablets for oral suspension should only be used to treat bacterial infections.  They do not treat viral infections (e.g., the common cold).  When amoxicillin tablets for oral suspension are prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy the medicine should be taken exactly as directed.  Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by amoxicillin tablets for oral suspension or other antibacterial drugs in the future.


A Patient Information Sheet is provided with the drug product.

Phenylketonurics




Each 200 mg amoxicillin tablet for oral suspension contains 3.1 mg phenylalanine; each 400 mg amoxicillin tablet for oral suspension contains 6.2 mg phenylalanine.

Laboratory Tests




As with any potent drug, periodic assessment of renal, hepatic, and hematopoietic function should be made during prolonged therapy.

 

All patients with gonorrhea should have a serologic test for syphilis at the time of diagnosis. Patients treated with amoxicillin should have a follow-up serologic test for syphilis after 3 months.

Drug Interactions




Probenecid decreases the renal tubular secretion of amoxicillin. Concurrent use of amoxicillin and probenecid may result in increased and prolonged blood levels of amoxicillin.


Chloramphenicol, macrolides, sulfonamides, and tetracyclines may interfere with the bactericidal effects of penicillin. This has been demonstrated in vitro; however, the clinical significance of this interaction is not well documented.

Drug/Laboratory Test Interactions




High urine concentrations of ampicillin may result in false-positive reactions when testing for the presence of glucose in urine using Clinitest®, Benedict’s Solution or Fehling’s Solution. Since this effect may also occur with amoxicillin, it is recommended that glucose tests based on enzymatic glucose oxidase reactions (such as Clinistix®) be used.


Following administration of ampicillin to pregnant women, a transient decrease in plasma concentration of total conjugated estriol, estriol-glucuronide, conjugated estrone, and estradiol has been noted. This effect may also occur with amoxicillin.

Carcinogenesis, Mutagenesis, Impairment of Fertility




Long-term studies in animals have not been performed to evaluate carcinogenic potential. Studies to detect mutagenic potential of amoxicillin alone have not been conducted; however, the following information is available from tests on a 4:1 mixture of amoxicillin and potassium clavulanate. Mixture of amoxicillin and potassium clavulanate was non-mutagenic in the Ames bacterial mutation assay, and the yeast gene conversion assay. Mixture of amoxicillin and potassium clavulanate was weakly positive in the mouse lymphoma assay, but the trend toward increased mutation frequencies in this assay occurred at doses that were also associated with decreased cell survival. Mixture of amoxicillin and potassium clavulanate was negative in the mouse micronucleus test, and in the dominant lethal assay in mice. Potassium clavulanate alone was tested in the Ames bacterial mutation assay and in the mouse micro-nucleus test, and was negative in each of these assays. In a multi-generation reproduction study in rats, no impairment of fertility or other adverse reproductive effects were seen at doses up to 500 mg/kg (approximately 3 times the human dose in mg/m2).

Pregnancy


Teratogenic Effects

Pregnancy Category B.

 

Reproduction studies have been performed in mice and rats at doses up to ten (10) times the human dose and have revealed no evidence of impaired fertility or harm to the fetus due to amoxicillin. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed.

Labor and Delivery




Oral ampicillin-class antibiotics are poorly absorbed during labor. Studies in guinea pigs showed that intravenous administration of ampicillin slightly decreased the uterine tone and frequency of contractions but moderately increased the height and duration of contractions. However, it is not known whether use of amoxicillin in humans during labor or delivery has immediate or delayed adverse effects on the fetus, prolongs the duration of labor, or increases the likelihood that forceps delivery or other obstetrical intervention or resuscitation of the newborn will be necessary.

Nursing Mothers




Penicillins have been shown to be excreted in human milk. Amoxicillin use by nursing mothers may lead to sensitization of infants. Caution should be exercised when amoxicillin is administered to a nursing woman.

Pediatric Use




Because of incompletely developed renal function in neonates and young infants, the elimination of amoxicillin may be delayed. Dosing of amoxicillin should be modified in pediatric patients 12 weeks or younger (≤ 3 months). (See DOSAGE AND ADMINISTRATION - Neonates and infants.)

Geriatric Use




An analysis of clinical studies of amoxicillin was conducted to determine whether subjects aged 65 and over respond differently from younger subjects.  Of the 1,811 subjects treated with capsules of amoxicillin, 85% were <60 years old, 15% were ≥61 years old and 7% were ≥71 years old.  This analysis and other reported clinical experience have not identified differences in responses between the elderly and younger patients, but a greater sensitivity of some older individuals cannot be ruled out. This drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function.  Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.

Adverse Reactions




As with other penicillins, it may be expected that untoward reactions will be essentially limited to sensitivity phenomena. They are more likely to occur in individuals who have previously demonstrated hypersensitivity to penicillins and in those with a history of allergy, asthma, hay fever, or urticaria. The following adverse reactions have been reported as associated with the use of penicillins:


Gastrointestinal:  nausea, vomiting, diarrhea, and hemorrhagic/pseudomembranous colitis.

 

Onset of pseudomembranous colitis symptoms may occur during or after antibiotic treatment. (See WARNINGS.)


Hypersensitivity Reactions:  Serum sickness like reactions, erythematous maculopapular rashes, erythema multiforme, Stevens-Johnson syndrome, exfoliative dermatitis, toxic epidermal necrolysis, acute generalized exanthematous pustulosis, hypersensitivity vasculitis and urticaria have been reported.


NOTE: These hypersensitivity reactions may be controlled with antihistamines and, if necessary, systemic corticosteroids. Whenever such reactions occur, amoxicillin should be discontinued unless, in the opinion of the physician, the condition being treated is life-threatening and amenable only to amoxicillin therapy.


Liver: A moderate rise in AST (SGOT) and/or ALT (SGPT) has been noted, but the significance of this finding is unknown. Hepatic dysfunction including cholestatic jaundice, hepatic cholestasis, and acute cytolytic hepatitis have been reported.


Renal:  Crystalluria has also been reported (see OVERDOSAGE).


Hemic and Lymphatic Systems:  Anemia, including hemolytic anemia, thrombocytopenia, thrombocytopenic purpura, eosinophilia, leukopenia, and agranulocytosis have been reported during therapy with penicillins. These reactions are usually reversible on discontinuation of therapy and are believed to be hypersensitivity phenomena.


Central Nervous System:  Reversible hyperactivity, agitation, anxiety, insomnia, confusion, convulsions, behavioral changes, and/or dizziness have been reported rarely.

 

Miscellaneous:  Tooth discoloration (brown, yellow, or gray staining) has been rarely reported.  Most reports occurred in pediatric patients. Discoloration was reduced or eliminated with brushing or dental cleaning in most cases.

Combination therapy with clarithromycin and lansoprazole




In clinical trials using combination therapy with amoxicillin plus clarithromycin and lansoprazole, and amoxicillin plus lansoprazole, no adverse reactions peculiar to these drug combinations were observed. Adverse reactions that have occurred have been limited to those that had been previously reported with amoxicillin, clarithromycin, or lansoprazole.

Triple therapy: amoxicillin/clarithromycin/lansoprazole




The most frequently reported adverse events for patients who received triple therapy were diarrhea (7%), headache (6%), and taste perversion (5%). No treatment-emergent adverse events were observed at significantly higher rates with triple therapy than with any dual therapy regimen.

Dual therapy: amoxicillin/lansoprazole




The most frequently reported adverse events for patients who received amoxicillin t.i.d.  plus lansoprazole t.i.d. dual therapy were diarrhea (8%) and headache (7%). No treatment-emergent adverse events were observed at significantly higher rates with amoxicillin t.i.d. plus lansoprazole t.i.d. dual therapy than with lansoprazole alone.


For more information on adverse reactions with clarithromycin or lansoprazole, refer to their package inserts, ADVERSE REACTIONS.

Overdosage




In case of overdosage, discontinue medication, treat symptomatically, and institute supportive measures as required. If the overdosage is very recent and there is no contraindication, an attempt at emesis or other means of removal of drug from the stomach may be performed. A prospective study of 51 pediatric patients at a poison-control center suggested that overdosages of less than 250 mg/kg of amoxicillin are not associated with significant clinical symptoms and do not require gastric emptying.3


Interstitial nephritis resulting in oliguric renal failure has been reported in a small number of patients after overdosage with amoxicillin. Renal impairment appears to be reversible with cessation of drug administration. High blood levels may occur more readily in patients with impaired renal function because of decreased renal clearance of amoxicillin. Amoxicillin may be removed from circulation by hemodialysis.


Crystalluria, in some cases leading to renal failure, has also been reported after amoxicillin overdosage in adult and pediatric patients.  In case of overdosage, adequate fluid intake and diuresis should be maintained to reduce the risk of amoxicillin crystalluria.

Amoxicillin Tablets for Suspension Dosage and Administration




Amoxicillin may be given without regard to meals.

Direction for Amoxicillin Tablets for Oral Suspension




Mix one tablet in a small amount of water [approximately 2 teaspoonfuls]. Drink the entire mixture.  Rinse the container with an additional small amount of water and drink the contents to assure the whole dose is taken. Do not chew or swallow the tablets. The tablets will not rapidly dissolve in your mouth.


The tablet is not recommended to be mixed with any liquid other than water, as studies have only been conducted using water.


ALL RECOMMENDED DOSAGES FOR AMOXICILLIN ARE INCLUDED IN THIS SECTION FOR INFORMATIONAL PURPOSES ONLY. THE 200 mg TABLET FOR ORAL SUSPENSION IS APPROPRIATE ONLY FOR A 200 mg DOSE AND THE 400 mg TABLET FOR ORAL SUSPENSION IS APPROPRIATE ONLY FOR A 400 mg DOSE.

Neonates and infants aged ≤ 12 weeks (≤ 3 months)




Due to incompletely developed renal function affecting elimination of amoxicillin in this age group, the recommended upper dose of amoxicillin is 30 mg/kg/day divided q12h.

Adults and pediatric patients > 3 months


































































































   Infection   Severity‡   Usual Adult Dose   Usual Dose for Children >3

   Months§
‡ Dosing for infections caused by less susceptible organisms should follow the recommendations for severe infections.

§The children’s dosage is intended for individuals whose weight is less than 40 kg. Children weighing 40 kg or more should be dosed according to the adult recommendations.
   Ear/nose/throat
   Mild/Moderate
   500 mg every 12 hours

   or 250 mg every 8 hours   
   25 mg/kg/day in divided

   doses every 12 hours
   or
   
   20 mg/kg/day in divided

   doses every 8 hours
   
   Severe
   875 mg every 12 hours

   or 500 mg every 8 hours   
   45 mg/kg/day in divided

   doses every 12 hours
 
   or
   
   40 mg/kg/day in divided

   doses every 8 hours
   
   Lower respiratory tract    
   Mild/Moderate or Severe    
   875 mg every 12 hours

   or 500 mg every 8 hours
   45 mg/kg/day in divided

   doses every 12 hours
   or
   
   40 mg/kg/day in divided

   doses every 8 hours
   
   Skin/skin structure
   Mild/Moderate
   500 mg every 12 hours

   or 250 mg every 8 hours
   25 mg/kg/day in divided

   doses every 12 hours
   or
   
   20 mg/kg/day in divided

   doses every 8 hours
   
   Severe
   875 mg every 12 hours

   or 500 mg every 8 hours
   45 mg/kg/day in divided

   doses every 12 hours
 
   or
   
   40 mg/kg/day in divided

   doses every 8 hours
   
   Genitourinary tract
   Mild/Moderate
   500 mg every 12 hours

   or 250 mg every 8 hours
   25 mg/kg/day in divided

   doses every 12 hours
   or
   
   20 mg/kg/day in divided

   doses every 8 hours
   
   Severe
   875 mg every 12 hours

   or 500 mg every 8 hours
   45 mg/kg/day in divided

   doses every 12 hours
 
   or
   
   40 mg/kg/day in divided

   doses every 8 hours
   
   Gonorrhea Acute,

   uncomplicated

   ano-genital and

   urethral infections

   in males and

   females
 
   3 grams as single oral

   dose    
   Prepubertal children:   50

   mg/kg amoxicillin,

   combined with 25 mg/kg

   probenecid as a single dose.

   NOTE: SINCE

   PROBENECID IS

   CONTRAINDICATED

   IN CHILDREN UNDER

   2 YEARS, DO NOT USE    

   THIS REGIMEN IN

   THESE CASES.

Terby




Terby may be available in the countries listed below.


Ingredient matches for Terby



Terbinafine

Terbinafine hydrochloride (a derivative of Terbinafine) is reported as an ingredient of Terby in the following countries:


  • Japan

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Bigsens




Bigsens may be available in the countries listed below.


Ingredient matches for Bigsens



Metformin

Metformin hydrochloride (a derivative of Metformin) is reported as an ingredient of Bigsens in the following countries:


  • Myanmar

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Broxolflem




Broxolflem may be available in the countries listed below.


Ingredient matches for Broxolflem



Carbocisteine

Carbocisteine is reported as an ingredient of Broxolflem in the following countries:


  • Venezuela

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Friday, October 21, 2016

Sulfacetamide


Class: Antibacterials
ATC Class: S01AB
VA Class: OP210
CAS Number: 6209-17-2
Brands: Bleph 10, Blephamide, FML-S

Introduction

Sulfonamide anti-infective.107


Uses for Sulfacetamide


Bacterial Ophthalmic Infections


Treatment of conjunctivitis, corneal ulcers, and other superficial infections of the eye caused by susceptible Staphylococcus aureus, Streptococcus pneumoniae, viridans streptococci, Haemophilus influenzae, Enterobacter, Escherichia coli, and Klebsiella.107 108 f


Used alone or in fixed combination with topical corticosteroids (e.g., fluorometholone, prednisolone) when such combination therapy is indicated.b c e g


Ineffective for treatment of infections caused by Neisseria, Serratia marcescens, or Pseudomonas aeruginosa.108 b c e f g Consider that staphylococci frequently are resistant to sulfonamides.108 b c e f g


Chlamydial Ophthalmic Infections


Has been used as an adjunct to systemic anti-infectives for treatment of trachoma; 107 108 f however, systemic anti-infectives are recommended.106 No data to support use of topical anti-infectives in conjunction with systemic therapy.106


Sulfacetamide Dosage and Administration


Administration


Ophthalmic Administration


Apply topically to the eye(s) as an ophthalmic ointment, solution, or suspension.107 108 b c e f g


Not for injection;107 108 b c e f do not inject subconjunctivally or instill directly into the anterior chamber of the eye.g


Avoid contamination of the tip of the container.b c e f g


Shake suspension well prior to use.b g


Dosage


Available as sulfacetamide sodium; dosage expressed in terms of the salt.f


Available as fixed combinations containing sulfacetamide sodium and prednisolone acetate, prednisolone sodium phosphate, or fluorometholone; dosage expressed in terms of the salt.b c e g


Pediatric Patients


Bacterial Ophthalmic Infections

Sulfacetamide 10%

Ophthalmic Solution

Children ≥2 months of age: Initially, 1 or 2 drops into the conjunctival sac of the affected eye(s) every 2–3 hours.f Reduce dosing frequency as infection improves.f Usual duration of treatment is 7–10 days.f


Sulfacetamide 10% and Fluorometholone 0.1%

Ophthalmic Suspension

Children ≥2 years of age: 1 drop into the conjunctival sac of the affected eye(s) 4 times daily.g Reduce dosing frequency as infection improves.g


If improvement does not occur after 2 days, reevaluate the patient.g Do not discontinue prematurely.g


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.g


Sulfacetamide 10% and Prednisolone Acetate 0.2%

Ophthalmic Ointment

Children ≥6 years of age: Apply a 1.25-cm ribbon into the conjunctival sac of the affected eye(s) 3 or 4 times daily during the day and once or twice during the night.c Reduce dosing frequency as infection improves.c


If improvement does not occur after 2 days, reevaluate the patient.b c Do not discontinue prematurely.b c


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.b c


Ophthalmic Suspension

Children ≥6 years of age: 2 drops into the conjunctival sac of the affected eye(s) every 4 hours during the day and at bedtime.b Reduce dosing frequency as infection improves.b


If improvement does not occur after 2 days, reevaluate the patient.b c Do not discontinue prematurely.b c


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.b c


Sulfacetamide 10% and Prednisolone Sodium Phosphate 0.25%

Ophthalmic Solution

Children ≥6 years of age: 2 drops into the affected eye(s) every 4 hours.e Reduce dosing frequency as infection improves.e


If improvement does not occur after 2 days, reevaluate the patient.e Do not discontinue prematurely.e


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.e


Chlamydial Ophthalmic Infections

Trachoma

Ophthalmic Solution

Sulfacetamide 10% in children ≥2 months of age: 2 drops into the conjunctival sac of the affected eye(s) every 2 hours in conjunction with systemic anti-infectives.f


Adults


Bacterial Ophthalmic Infections

Sulfacetamide 10%

Ophthalmic Solution

Initially, 1 or 2 drops of solution into the conjunctival sac of the affected eye(s) every 2–3 hours.f Reduce dosing frequency as infection improves.f Usual duration of treatment is 7–10 days.f


Sulfacetamide 10% and Fluorometholone 0.1%

Ophthalmic Suspension

1 drop into the conjunctival sac of the affected eye(s) 4 times daily.g Reduce dosing frequency as infection improves.g


If improvement does not occur after 2 days, reevaluate the patient.g Do not discontinue prematurely.g


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.g


Sulfacetamide 10% and Prednisolone Acetate 0.2%

Ophthalmic Ointment

Apply a 1.25-cm ribbon into the conjunctival sac of the affected eye(s) 3 or 4 times daily during the day and once or twice during the night.c Reduce dosing frequency as infection improves.c


If improvement does not occur after 2 days, reevaluate the patient.b c Do not discontinue prematurely.b c


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.b c


Ophthalmic Suspension

2 drops into the conjunctival sac of the affected eye(s) every 4 hours during the day and at bedtime.b Reduce dosing frequency as infection improves.b


If improvement does not occur after 2 days, reevaluate the patient.b c Do not discontinue prematurely.b c


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.b c


Sulfacetamide 10% and Prednisolone Sodium Phosphate 0.25%

Ophthalmic Solution

2 drops into the affected eye(s) every 4 hours.e Reduce dosing frequency as infection improves.e


If improvement does not occur after 2 days, reevaluate the patient.e Do not discontinue prematurely.e


When discontinuing therapy in chronic conditions, gradually taper dosing frequency.e


Chlamydial Ophthalmic Infections

Trachoma

Ophthalmic Solution

Sulfacetamide 10%: 2 drops into the conjunctival sac of the affected eye(s) every 2 hours, in conjunction with systemic anti-infectives.f


Special Populations


No special population dosage recommendations at this time.a b c e f g


Cautions for Sulfacetamide


Contraindications



  • Known or suspected hypersensitivity to sulfonamides or to any ingredient in the formulation.107 108 b c e f g



Warnings/Precautions


Warnings


Severe Reactions

Severe, fatal reactions to sulfonamides have occurred rarely, including dermatologic reactions, fulminant hepatic necrosis, agranulocytosis, aplastic anemia, or other blood dyscrasias.107 108 f g


Adverse reactions reported with systemic sulfonamides could occur with topical application.107


Sensitivity Reactions


Hypersensitivity

Topical application of sulfonamides may produce sensitization and preclude later systemic use of these drugs.107 a f g In addition, patients who have been sensitized by systemic sulfonamide administration may exhibit hypersensitivity reactions following topical application of the drugs.107 a f g


Stevens-Johnson syndrome and toxic epidermal necrolysis have been reported rarely following topical application in individuals with a history of hypersensitivity to systemic sulfonamides.107 108 f g


Cross-sensitivity occurs among the various sulfonamides.108 f


Discontinue sulfonamide therapy immediately at the first sign of hypersensitivity, rash, or other serious reaction.107 108 f g


General Precautions


Superinfection

Use of sulfonamides may result in the overgrowth of nonsusceptible organisms, including fungi.107 108 f g Bacterial and fungal corneal ulcers have developed during use of ophthalmic sulfonamide preparations.108


Discontinue drug and institute appropriate therapy if superinfection occurs.107


Ophthalmic Ointments

Ophthalmic ointments may delay corneal healing.c


Use of Fixed Combinations Containing Corticosteroids

Concomitant topical corticosteroids may mask clinical signs of bacterial, fungal, or viral infections; prevent recognition of ineffectiveness of the antibiotic; or suppress hypersensitivity reactions to sulfonamides or other ingredients in the formulation.107 c


When sulfacetamide is used in fixed combination with a corticosteroid, consider the cautions, precautions, and contraindications associated with EENT corticosteroids.b c e g


Specific Populations


Pregnancy

Category C.108 f


Lactation

Systemically absorbed sulfonamides can cause kernicterus in neonates and infants.108 f g Discontinue nursing or the drug.108 f g


Pediatric Use

Safety and efficacy of ophthalmic sulfacetamide sodium not established in infants <2 months of age.107 108 f


Safety and efficacy of fixed-combination ophthalmic sulfacetamide and prednisolone not established in children <6 years of age.b c e


Safety and efficacy of fixed-combination ophthalmic sulfacetamide and fluorometholone not established in children <2 years of age.g


Geriatric Use

No substantial differences in safety and efficacy relative to younger adults.g


Common Adverse Effects


Local irritation, transient stinging or burning.107 a f


Interactions for Sulfacetamide


Specific Drugs












Drug



Interaction



Comments



Anesthetics, local (p-aminobenzoic acid related



Possible antagonism of action of sulfonamides107



Gentamicin



In vitro antagonismb c e



Do not use concomitantlyb c e


Sulfacetamide Pharmacokinetics


Absorption


Extent


Sulfonamides do not appear to be appreciably absorbed from mucous membranes.107


Distribution


Extent


Systemic sulfonamides cross the placenta and are distributed into human milk in low concentrations.h


Stability


Storage


Ophthalmic


Sulfonamide preparations darken on prolonged standing and exposure to heat and light.b e f Discard preparations that have darkened; yellow discoloration does not affect activity.b e f


Ointment

Sulfacetamide sodium and prednisolone acetate: Tightly closed containers at 15–25°C.c


Solution

Sulfacetamide sodium: 8–25°C; protect from light and freezing.f


Sulfacetamide sodium and prednisolone sodium phosphate: 15–25°C; protect from light.e


Suspension

Sulfacetamide sodium and fluorometholone: 15–30°C; protect from light and freezing.g


Sulfacetamide sodium and prednisolone acetate: Upright position at 8–24°C; protect from light and freezing.b


Compatibility


For information on systemic interactions resulting from concomitant use, see Interactions.


Ophthalmic


Ointment or Solution

Sulfacetamide sodium is incompatible with preparations containing silver.107 108 f


Precipitation may occur if zinc sulfate is added to sulfacetamide sodium solutions, depending on the concentration of each drug.107


Actions and SpectrumActions



  • Usually bacteriostatic,f but may be bactericidal at very high concentrations.107 108




  • Sulfonamides interfere with utilization of aminobenzoic or aminobenzoic glutamic acids by susceptible organisms, thus inhibiting biosynthesis of folic acid which is essential for growth.107 a f Only organisms that synthesize their own folic acid are inhibited by sulfonamides; animal cells and bacteria that are capable of utilizing folic acid precursors or preformed folic acid are not affected.107




  • Antibacterial activity is decreased in the presence of blood or purulent exudates containing p-aminobenzoic acid.107 108 a f




  • Spectrum of activity includes some aerobic gram-positive and -negative bacteria.107 a




  • Gram-positive aerobic bacteria: Active against S. aureus, S. pneumoniae, and viridans streptococci.107 108 a f g Many staphylococci are resistant.107 108 g




  • Gram-negative aerobic bacteria: Active against H. influenzae, Enterobacter, E. coli, and Klebsiella.108 a f g




  • Cross-resistance usually occurs among the various sulfonamides.107 a f



Advice to Patients



  • Importance of not touching tip of container to eye, eyelid, or any other surface.108 b c e f g Advise patient to keep container tightly closed when not in use.g




  • Importance of discontinuing use and contacting clinician at first sign of hypersensitivity, increase in discharge, or if pain or swelling worsen.108 b c f




  • Advise patient not to share the drug with any other person.c g




  • Importance of removing soft contact lenses prior to administering preparations containing benzalkonium chloride and of delaying reinsertion of the lenses for ≥5 minutes after administration.b i




  • Importance of informing clinicians of existing or contemplated concomitant therapy, including prescription and OTC drugs.f




  • Importance of women informing clinicians if they are or plan to become pregnant or plan to breast-feed.f




  • Importance of informing patients of other important precautionary information. (See Cautions.)



Preparations


Excipients in commercially available drug preparations may have clinically important effects in some individuals; consult specific product labeling for details.


* available from one or more manufacturer, distributor, and/or repackager by generic (nonproprietary) name




























Sulfacetamide Sodium

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Bulk



Powder



Ophthalmic



Ointment



10%*



Sulfacetamide Sodium Ophthalmic Ointment



Fougera



Solution



10%*



Bleph 10 (with benzalkonium chloride)



Allergan



Sulfacetamide Sodium Ophthalmic Solution



Bausch & Lomb, Falcon


















Sulfacetamide Sodium and Prednisolone Acetate

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Ophthalmic



Ointment



10% Sulfacetamide Sodium and Prednisolone Acetate 0.2%



Blephamide (with phenylmercuric acetate)



Allergan



Suspension



10% Sulfacetamide Sodium and Prednisolone Acetate 0.2%



Blephamide (with benzalkonium chloride)



Allergan


* available from one or more manufacturer, distributor, and/or repackager by generic (nonproprietary) name


















Other Sulfacetamide Sodium Combinations

Routes



Dosage Forms



Strengths



Brand Names



Manufacturer



Ophthalmic



Solution



10% with 0.25% Prednisolone Sodium Phosphate (0.23% of prednisolone phosphate)*



Sulfacetamide Sodium and Prednisolone Sodium Phosphate Ophthalmic Solution



Bausch & Lomb, Falcon



Ophthalmic



Suspension



10% with Fluorometholone 0.1%



FML-S (with benzalkonium chloride and povidone)



Allergan


Comparative Pricing


This pricing information is subject to change at the sole discretion of DS Pharmacy. This pricing information was updated 03/2011. Actual costs to patients will vary depending on the use of specific retail or mail-order locations and health insurance copays.


Bleph-10 10% Solution (ALLERGAN): 5/$27.99 or 15/$61.97


Blephamide 10-0.2% Suspension (ALLERGAN): 10/$95.99 or 30/$275.97


Blephamide 10-0.2% Suspension (ALLERGAN): 5/$67.99 or 15/$189.98


Blephamide S.O.P. 10-0.2% Ointment (ALLERGAN): 3/$68.99 or 10/$185.96


Sulfacetamide Sodium 10% Solution (FALCON PHARMACEUTICALS): 15/$12.99 or 30/$18.98


Sulfacetamide-Prednisolone 10-0.23% Solution (BAUSCH &amp; LOMB): 10/$30.99 or 20/$53.97


Sulfacetamide-Prednisolone 10-0.23% Solution (BAUSCH &amp; LOMB): 5/$21.99 or 15/$53.97



Disclaimer

This report on medications is for your information only, and is not considered individual patient advice. Because of the changing nature of drug information, please consult your physician or pharmacist about specific clinical use.


The American Society of Health-System Pharmacists, Inc. and Drugs.com represent that the information provided hereunder was formulated with a reasonable standard of care, and in conformity with professional standards in the field. The American Society of Health-System Pharmacists, Inc. and Drugs.com make no representations or warranties, express or implied, including, but not limited to, any implied warranty of merchantability and/or fitness for a particular purpose, with respect to such information and specifically disclaims all such warranties. Users are advised that decisions regarding drug therapy are complex medical decisions requiring the independent, informed decision of an appropriate health care professional, and the information is provided for informational purposes only. The entire monograph for a drug should be reviewed for a thorough understanding of the drug's actions, uses and side effects. The American Society of Health-System Pharmacists, Inc. and Drugs.com do not endorse or recommend the use of any drug. The information is not a substitute for medical care.

AHFS Drug Information. © Copyright, 1959-2011, Selected Revisions September 2009. American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland 20814.




References


Only references cited for selected revisions after 1984 are available electronically.



101. Allergan, Inc. Bleph-10 (sulfacetamide sodium) ophthalmic ointment prescribing information. In: Physicians’ desk reference for ophthalmic medicines. 34th ed. Montvale, NJ: Thomson PDR; 2006:219-20.



102. Fougera. Sulfacetamide sodium ophthalmic ointment USP, 10% prescribing information. Melville, NY; 1998 Mar.



103. Falcon Pharmaceuticals, Ltd. Sulfacetamide sodium and prednisolone sodium phosphate ophthalmic solution. Fort Worth, TX; 2003 Nov.



104. Allergan. FML-S (fluorometholone and sulfacetamide sodium ophthalmic suspension, USP) 0.1%/10% prescribing information. In: Physicians’ desk reference for ophthalmic medicines. 34th ed. Montevale, NJ: Thomson PDR; 2006:226-7.



105. American Academy of Pediatrics. Red book: 2006 Report of the Committee on Infectious Diseases. 27th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2006;252-7.



106. American Academy of Ophthalmology. Preferred Practice Pattern: Conjunctivitis. 2003. From the American Academy of Ophthalmology website. Accessed 11 May 2006.



107. AHFS Drug Information 2003. McEvoy, GK, ed. Sulfonamides (ophthalmic). Bethesda, MD: American Society of Health-System Pharmacists; 2003:2613-4.



108. Akorn. AK-Sulf (sulfacetamide sodium) ophthalmic solution prescribing information. Buffalo Grove, IL: 2000 May.



109. Committee on Infectious Diseases, American Academy of Pediatrics. 2000 Red book: report of the Committee on Infectious Diseases. 25th ed. Elk Grove Village, IL: American Academy of Pediatrics; 2000:210.



110. Anon. The choice of antibacterial drugs. Med Lett Drugs Ther. 2001; 43:69-78. [PubMed 11518876]



111. Allergan, Inc. Bleph-10 (sulfacetamide sodium) ophthalmic ointment prescribing information. Irvine, CA; 1993 Sept.



a. AHFS drug information 2008. McEvoy, GK, ed. Sulfacetamide sodium. Bethesda, MD: American Society of Health-System Pharmacists; 2008:2855-6.



b. Allergan, Inc. Blephamide (sulfacetamide sodium and prednisolone acetate, USP ophthalmic suspension) 10%/0.2% prescribing information. Irvine, CA; 2004 Jun.



c. Allergan, Inc. Blephamide (sulfacetamide sodium and prednisolone acetate ophthalmic ointment, USP) 10%/0.2% prescribing information. Irvine, CA; 2004 Sept.



e. Falcon Pharmaceuticals, Ltd. Sulfacetamide sodium and prednisolone sodium phosphate ophthalmic solution prescribing information. Fort Worth, TX; 2007 Jul.



f. Allergan, Inc. Bleph-10 (sulfacetamide sodium ophthalmic solution, USP) 10% prescribing information. Irvine, CA; 2005 Feb.



g. Allergan, Inc. FML-S (fluorometholone and sulfacetamide sodium ophthalmic suspension, USP) 0.1%/10% prescribing information. Irvine, CA; 2005 Feb.



h. Briggs CC, Freeman RK, Yaffe SJ. Drugs in pregnancy and lactation, 7th ed. Philadelphia, PA: Lippincott, Williams, & Wilkins; 2005: 1508-10.



i. Christensen MT, Barry JR, Turner FD. Five-minute removal of soft lenses prevents most absorption of a topical ophthalmic solution. CLAO J. 1998; 24:227-31. [PubMed 9800062]



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