Famotidine 20 mg Tablets

Adult dose

1. For gastric, duodenal ulcers, anastomotic ulcers, upper gastrointestinal bleeding, gastroesophageal reflux disease, Zollinger-Ellison syndrome: 20 mg orally, twice a day (after breakfast, after dinner or at bedtime) or 40 mg orally, once a day (at bedtime). For upper gastrointestinal bleeding, treatment is usually initiated with an injection, and when oral administration becomes possible, it is switched to oral administration. 2. Improvement of gastric mucosal lesions (acute gastritis, chronic gastritis)

This medication should not be used in patients who are allergic to specific components or have hypersensitivity to H2 receptor antagonists. Also, since it contains lactose, patients with lactose intolerance or related genetic disorders should not take this medication. Patients with a history of drug allergy, those with renal or liver dysfunction, patients with heart diseases, and the elderly should use this medication with caution. This medication can rarely cause serious side effects, including allergic reactions, blood cell reductions, cardiac rhythm abnormalities, liver dysfunction, kidney problems, skin diseases, muscle damage, consciousness impairment, or seizures, and if such symptoms occur, discontinuation and consultation with healthcare personnel are necessary. Common side effects may include dyspepsia, skin rash, blood pressure changes, headaches, drowsiness, insomnia, and cough, and if these symptoms appear, you should inform your doctor. During treatment, carefully monitor changes in symptoms, and if there is no effect or side effects are severe, other treatments may be considered. This medication dissolves in the mouth but is not absorbed through the mucosa, so it must be swallowed with water. Particularly for patients undergoing dialysis, caution is needed when using this medication in conjunction with phosphate binders as it may affect drug efficacy. There may be interactions with other medications, and efficacy may decrease when taken with antifungals or certain chemotherapeutic agents, so consultation with a physician or pharmacist is required. Elderly patients may have increased drug concentration due to decreased renal function, so dosage adjustments or changes in dosing intervals may be necessary. The safety of this medication during pregnancy has not been established, so it should only be taken when absolutely necessary during pregnancy, and nursing mothers are advised to discontinue breastfeeding. The safety in children has not been sufficiently confirmed, so caution should be exercised when used in pediatric patients. Finally, since this medication can mask symptoms of gastric cancer, it is important to confirm the malignancy after ensuring the condition is benign.

Serious side effects

Shock, hypersensitivity (anaphylaxis, difficulty breathing, generalized flushing, angioedema, urticaria), pancytopenia, agranulocytosis, aplastic anemia, hemolytic anemia, thrombocytopenia, Stevens-Johnson syndrome, Lyell's syndrome, liver dysfunction, jaundice, rhabdomyolysis, QT prolongation, ventricular tachycardia, ventricular fibrillation, altered consciousness, seizures, interstitial nephritis, acute renal failure, interstitial pneumonia, cardiac failure

Mild side effects

• Rash
• erythema
• urticaria
• facial swelling
• constipation
• diarrhea
• dry mouth
• nausea
• vomiting
• abdominal distension

This medication is sensitive to air and moisture, so it must be stored in a tightly closed container. The recommended storage temperature is between 1 to 30 degrees Celsius.

Appearance

Light green round film-coated tablets

Package unit

30 tablets/bottle, 500 tablets/bottle