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FAMOTIDINE (Tablet, Film Coated)

Source:http://www4.wiwiss.fu-berlin.de/dailymed/resource/drugs/117

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FAMOTIDINE (Tablet, Film Coated)
dailymed-instance:dosage
Duodenal Ulcer:<br/>Acute Therapy: The recommended adult oral dosage for active duodenal ulcer is 40 mg once a day at bedtime. Most patients heal within 4 weeks; there is rarely reason to use famotidine at full dosage for longer than 6 to 8 weeks. A regimen of 20 mg b.i.d. is also effective.<br/>Maintenance Therapy: The recommended adult oral dose is 20 mg once a day at bedtime.<br/>Benign Gastric Ulcer: Acute Therapy: The recommended adult oral dosage for active benign gastric ulcer is 40 mg once a day at bedtime.<br/>Gastroesophageal Reflux Disease (GERD): The recommended oral dosage for treatment of adult patients with symptoms of GERD is 20 mg b.i.d. for up to 6 weeks. The recommended oral dosage for the treatment of adult patients with esophagitis including erosions and ulcerations and accompanying symptoms due to GERD is 20 or 40 mg b.i.d. for up to 12 weeks .<br/>Dosage for Pediatric Patients 1-16 years of age: See PRECAUTIONS, Pediatric Patients 1-16 years of age. The studies described in PRECAUTIONS, Pediatric Patients 1-16 years of age suggest the following starting doses in pediatric patients 1-16 years of age. Peptic Ulcer - 0.5 mg/kg/day p.o. at bedtime or divided b.i.d. up to 40 mg/day. Gastroesophageal Reflux Disease with or without Esophagitis Including Erosions and Ulcerations���1.0 mg/kg/day p.o. divided b.i.d. up to 40 mg b.i.d. While published uncontrolled studies suggest effectiveness of famotidine in the treatment of gastroesophageal reflux disease and peptic ulcer, data in pediatric patients are insufficient to establish percent response with dose and duration of therapy. Therefore, treatment duration (initially based on adult duration recommendations) and dose should be individualized based on clinical response and/or pH determination (gastric or esophageal) and endoscopy. Published uncontrolled clinical studies in pediatric patients 1-16 years of age have employed doses up to 1 mg/kg/day for peptic ulcer and 2 mg/kg/day for GERD with or without esophagitis including erosions and ulcerations.<br/>Pathological Hypersecretory Conditions (e.g., Zollinger-Ellison Syndrome, Multiple Endocrine Adenomas): The dosage of famotidine in patients with pathological hypersecretory conditions varies with the individual patient. The recommended adult oral starting dose for pathological hypersecretory conditions is 20 mg q 6 h. In some patients, a higher starting dose may be required. Doses should be adjusted to individual patient needs and should continue as long as clinically indicated. Doses up to 160 mg q 6 h have been administered to some adult patients with severe Zollinger-Ellison Syndrome.<br/>Oral Suspension: Famotidine for oral suspension may be substituted for famotidine tablets in any of the above indications.<br/>Concomitant Use of Antacids: Antacids may be given concomitantly if needed.<br/>Dosage Adjustment for Patients with Moderate or Severe Renal Insufficiency: In adult patients with moderate (creatinine clearance<50 mL/min) or severe (creatinine clearance<10 mL/min) renal insufficiency, the elimination half-life of famotidine is increased. For patients with severe renal insufficiency, it may exceed 20 hours, reaching approximately 24 hours in anuric patients. Since CNS adverse effects have been reported in patients with moderate and severe renal insufficiency, to avoid excess accumulation of the drug in patients with moderate or severe renal insufficiency, the dose of famotidine may be reduced to half the dose or the dosing interval may be prolonged to 36-48hours as indicated by the patient's clinical response. Based on the comparison of pharmacokinetic parameters for famotidine in adults and pediatric patients, dosage adjustment in pediatric patients with moderate or severe renal insufficiency should be considered.
dailymed-instance:descripti...
The active ingredient in famotidine tablets, USP is a histamine H-receptor antagonist. Famotidine is N'(aminosulfonyl)-3-[[[2-[(diaminomethylene)amino]-4-thiazolyl]methyl]thio]propanimidamide. The molecular formula of famotidine is CHNOSand its molecular weight is 337.45. Its structural formula is: Famotidine is a white to pale yellow crystalline compound that is freely soluble in glacial acetic acid, slightly soluble in methanol, very slightly soluble in water, and practically insoluble in ethanol. Each tablet for oral administration contains either 20 mg or 40 mg of famotidine and the following inactive ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, Opadry OY 52945 Yellow, pregelatinized starch and talc. The composition of Opadry OY 52945 Yellow, used for film coating of famotidine tablets, is as follows: hydroxypropyl methylcellulose, polyethylene glycol 400, synthetic yellow iron oxide and titanium dioxide.
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Hypersensitivity to any component of these products. Cross sensitivity in this class of compounds has been observed. Therefore, famotidine should not be administered to patients with a history of hypersensitivity to other Hreceptor antagonists.
dailymed-instance:supply
Famotidine tablets, USP 20 mg are yellow color, round shaped, film-coated tablets debossed with "C119" on one side and plain on the other and are supplied in bottles of 30's, 100's, and 1000's counts. Bottles of 30 NDC 55111-119-30 Bottles of 100 NDC 55111-119-01 Bottles of 1000 NDC 55111-119-10 Famotidine tablets, USP 40 mg are yellow color, round shaped, film-coated tablets debossed with "C120" on one side and plain on the other and are supplied in bottles of 30's, 100's, and 1000's counts. Bottles of 30 NDC 55111-120-30 Bottles of 100 NDC 55111-120-01 Bottles of 1000 NDC 55111-120-10
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There is no experience to date with deliberate overdosage. Oral doses of up to 640 mg/day have been given to adult patients with pathological hypersecretory conditions with no serious adverse effects. In the event of overdosage, treatment should be symptomatic and supportive. Unabsorbed material should be removed from the gastrointestinal tract, the patient should be monitored, and supportive therapy should be employed. The oral LDof famotidine in male and female rats and mice was greater than 3000 mg/kg and the minimum lethal acute oral dose in dogs exceeded 2000 mg/kg. Famotidine did not produce overt effects at high oral doses in mice, rats, cats and dogs, but induced significant anorexia and growth depression in rabbits starting with 200 mg/kg/day orally. The intravenous LDof famotidine for mice and rats ranged from 254-563 mg/kg and the minimum lethal single I.V. dose in dogs was approximately 300 mg/kg. Signs of acute intoxication in I.V. treated dogs were emesis, restlessness, pallor of mucous membranes or redness of mouth and ears, hypotension, tachycardia and collapse.
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FAMOTIDINE
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FAMOTIDINE (Tablet, Film Coated)
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The adverse reactions listed below have been reported during domestic and international clinical trials in approximately 2500 patients. In those controlled clinical trials in which famotidine tablets were compared to placebo, the incidence of adverse experiences in the group which received famotidine tablets, 40 mg at bedtime, was similar to that in the placebo group. The following adverse reactions have been reported to occur in more than 1% of patients on therapy with famotidine in controlled clinical trials, and may be causally related to the drug: headache (4.7%), dizziness (1.3%), constipation (1.2%) and diarrhea (1.7%). The following other adverse reactions have been reported infrequently in clinical trials or since the drug was marketed. The relationship to therapy with famotidine has been unclear in many cases. Within each category the adverse reactions are listed in order of decreasing severity: Body As A Whole: fever, asthenia, fatigue Cardiovascular: arrhythmia, AV block, palpitation Gastrointestinal: cholestatic jaundice, liver enzyme abnormalities, vomiting, nausea, abdominal discomfort, anorexia, dry mouth Hematologic: rare cases of agranulocytosis, pancytopenia, leukopenia, thrombocytopenia Hypersensitivity: anaphylaxis, angioedema, orbital or facial edema, urticaria, rash, conjunctival injection Musculoskeletal: musculoskeletal pain including muscle cramps, arthralgia Nervous System/Psychiatric: grand mal seizure; psychic disturbances, which were reversible in cases for which follow-up was obtained, including hallucinations, confusion, agitation, depression, anxiety, decreased libido; paresthesia; insomnia; somnolence Respiratory: bronchospasm Skin: toxic epidermal necrolysis (very rare), alopecia, acne, pruritus, dry skin, flushing Special Senses: tinnitus, taste disorder Other: rare cases of impotence and rare cases of gynecomastia have been reported; however, in controlled clinical trials, the incidences were not greater than those seen with placebo. The adverse reactions reported for famotidine tablets may also occur with famotidine for Oral Suspension.<br/>Pediatric Patients: In a clinical study in 35 pediatric patients<1 year of age with GERD symptoms [e.g., vomiting (spitting up), irritability (fussing)], agitation was observed in 5 patients on famotidine that resolved when the medication was discontinued.
dailymed-instance:indicatio...
Famotidine is indicated in: 1. Short-term treatment of active duodenal ulcer. Most adult patients heal within 4 weeks; there is rarely reason to use famotidine at full dosage for longer than 6 to 8 weeks. Studies have not assessed the safety of famotidine in uncomplicated active duodenal ulcer for periods of more than eight weeks. 2. Maintenance therapy for duodenal ulcer patients at reduced dosage after healing of an active ulcer. Controlled studies in adults have not extended beyond one year. 3. Short-term treatment of active benign gastric ulcer. Most adult patients heal within 6 weeks. Studies have not assessed the safety or efficacy of famotidine in uncomplicated active benign gastric ulcer for periods of more than 8 weeks. 4. Short-term treatment of gastroesophageal reflux disease (GERD). Famotidine is indicated for short-term treatment of patients with symptoms of GERD . Famotidine is also indicated for the short-term treatment of esophagitis due to GERD including erosive or ulcerative disease diagnosed by endoscopy . 5. Treatment of pathological hypersecretory conditions (e. g., Zollinger-Ellison Syndrome, multiple endocrine adenomas ) .
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FAMOTIDINE