Famotidine Tablets 20 mg (Famotidine)

Adult dosage

For gastric and duodenal ulcers, anastomotic ulcers, upper gastrointestinal bleeding, gastroesophageal reflux disease, and Zollinger-Ellison syndrome: As famotidine, take 20 mg orally twice a day (after breakfast, after dinner, or at bedtime) or 40 mg orally once a day (at bedtime). In cases of upper gastrointestinal bleeding, treatment typically starts with injections and is switched to oral administration once feasible. For acute gastritis and acute exacerbation of chronic gastritis.

This medication should not be used by patients who have had allergic reactions to this drug’s ingredients or similar medications. Additionally, it should not be taken by patients with a genetic disorder that prevents the digestion of lactose, as it contains lactose. Those with a history of drug allergies should use this medication cautiously, and patients with impaired kidney function may need to reduce the dosage or extend the dosing interval, as drug concentration can increase. Patients with heart disease, impaired liver function, and the elderly should also use this medication with caution. This drug can rarely cause serious allergic reactions, blood disorders, skin diseases, liver dysfunction, muscle damage, cardiac arrhythmias, consciousness disturbances, kidney problems, pulmonary diseases, and other side effects. Therefore, if any unusual symptoms occur, use should be stopped immediately and a doctor should be consulted. Furthermore, various side effects such as vomiting, diarrhea, headache, drowsiness, dizziness, cough, and blood pressure changes have been reported, so monitoring body condition is crucial. It is important to use the minimum dose necessary while confirming the therapeutic effect and to undergo regular blood tests or liver and kidney function tests. This medication dissolves in the mouth but is not absorbed through the mucosa, so it must be swallowed with water. Patients undergoing hemodialysis should be cautious, as interactions with other medications may reduce efficacy. Taking this drug with certain antifungal agents can diminish each other's effects, so consultation with a doctor is necessary. Elderly patients with reduced kidney function may retain the medication longer, necessitating dosage adjustment. Women who are pregnant or may become pregnant should only take this medication if the benefits outweigh the risks, as safety has not been fully established. Breastfeeding women are advised to discontinue breastfeeding, as this drug may be transferred into breast milk. Safety in children has not been sufficiently verified, so its use is not recommended. Finally, this medication can mask symptoms of gastric cancer, so it should only be used after confirming that it is not gastric cancer.

Serious side effects

Shock, hypersensitivity (anaphylaxis, dyspnea, 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, consciousness disturbance, seizures, interstitial nephritis, acute renal failure, interstitial pneumonia, contraction failure

Mild side effects

• Hypersensitivity
• rash
• urticaria
• facial edema
• leukopenia
• eosinophilia
• constipation
• diarrhea
• thirst
• nausea

This medication should be stored in a tightly sealed container that does not allow air entry and kept at a temperature between 1 and 30 degrees Celsius. Storing it this way maintains the drug's effectiveness for a longer period.

Appearance

White round film-coated tablets

Package unit

30 tablets/bottle, 500 tablets/bottle, 1000 tablets/bottle