Medication info
Famotidine Tablet 20mg

Famotidine Tablet 20mg

Prescription medicationTablet경구
Ingredient · strength
Famotidine›20mg / 1 tablet
Manufacturer / importer
(주)시어스제약
Appearance
White round film-coated tablets
Packaging
30 tablets/bottle, 1000 tablets/bottle
Approval status
Active

MFDS item code 201908709 · Approved 2019.12.31 · Insurance code 689001170

Summary

Main use
Improvement of gastric ulcers and upper gastrointestinal bleeding (peptic ulcers, acute stress ulcers)
Who takes it
Adults
Adult dose
1. For gastric and duodenal ulcers, anastomotic ulcers, upper gastrointestinal bleeding, gastroesophageal reflux disease, Zollinger-Ellison syndrome: 20 mg orally twice daily (after breakfast and after dinner or at bedtime) or 40 mg orally once daily (at bedtime). Begin treatment with the injectable form in cases of upper gastrointestinal bleeding and switch to oral administration when possible. 2. For improving gastric mucosal lesions (acute gastritis, acute exacerbation of chronic gastritis.

Ingredients

Manufacturer
(주)시어스제약

Efficacy & effects

Improvement of gastric ulcers and upper gastrointestinal bleeding (peptic ulcers, acute stress ulcers)

  • Gastric ulcer
  • duodenal ulcer
  • anastomotic ulcer
  • upper gastrointestinal bleeding
  • acute stress ulcer
  • hemorrhagic gastritis
  • gastroesophageal reflux disease
  • Zollinger-Ellison syndrome
  • gastric mucosal erosion
  • gastric mucosal bleeding
  • gastric mucosal redness
  • gastric mucosal edema
View approved original text

This medication is used to treat gastric and duodenal ulcers, as well as anastomotic ulcers. It is effective in improving upper gastrointestinal bleeding and hemorrhagic gastritis caused by peptic ulcers or acute stress ulcers. It is also prescribed for patients with gastroesophageal reflux disease and Zollinger-Ellison syndrome. It helps improve lesions such as erosion, bleeding, redness, and edema of the gastric mucosa that occur during acute exacerbations of acute gastritis and chronic gastritis. It protects the gastric mucosa and aids in the recovery of damaged areas, promoting health.

How to take

Adult dose

1. For gastric and duodenal ulcers, anastomotic ulcers, upper gastrointestinal bleeding, gastroesophageal reflux disease, Zollinger-Ellison syndrome: 20 mg orally twice daily (after breakfast and after dinner or at bedtime) or 40 mg orally once daily (at bedtime). Begin treatment with the injectable form in cases of upper gastrointestinal bleeding and switch to oral administration when possible. 2. For improving gastric mucosal lesions (acute gastritis, acute exacerbation of chronic gastritis.

Precautions

This medication should not be administered to certain patients. Patients who are allergic to any components of this drug or who are hypersensitive to other H2 receptor antagonists should not use it. Additionally, it contains lactose, so patients with lactose intolerance or genetic lactose-related diseases should not use it. This medication should be used cautiously in certain patients. Patients with hypersensitivity to the drug, reduced kidney function, heart disease, impaired liver function, and the elderly should use this medication carefully. In particular, in cases of poor kidney function, the dosage should be reduced or the dosing interval should be extended. This medication can have various side effects, so attention should be paid. Severe allergy reactions or shock, blood cell reduction, severe skin disorders, liver dysfunction, muscle damage, cardiac rhythm abnormalities, consciousness disorders, kidney issues, pneumonia, and other serious symptoms may occur. If these symptoms occur, discontinue the medication immediately and consult with a healthcare professional. Common side effects may include rash, hives, dyspepsia, changes in blood pressure, headache, drowsiness, dizziness, muscle cramps, and psychiatric changes. If these symptoms appear, inform a healthcare professional. This drug should be used at the minimal dosage while monitoring treatment effectiveness. If there is no effect, consider switching to alternative treatments. The medication should be swallowed with water or saliva, as it dissolves in the mouth but is not absorbed through the oral mucosa. Patients undergoing hemodialysis may experience reduced effectiveness when this drug is used in conjunction with phosphate binders, so caution is advised. This medication can interact with other drugs. In particular, when used with antifungals or certain anticancer agents, the effects of this drug or others may decrease, so it is essential to inform the healthcare professional of all medications being taken. Elderly patients may experience prolonged retention of the medication in the body due to decreased kidney function, necessitating cautious use by reducing dosages or extending intervals. Pregnant women or women who may become pregnant should only use this medication when the therapeutic benefits are deemed greater than the risks, and its safety has not been fully established. Breastfeeding women are advised to discontinue nursing, as this drug can be passed into breast milk. Safety in children has not been adequately proven, and there is limited experience, so caution is necessary. Lastly, this medication can mask symptoms of gastric cancer, so it should only be used after confirming that the condition is not due to a malignancy.

Side effects and when to seek care immediately

Serious side effects

Hives, severe swelling (angioedema), chest tightness, difficulty breathing, cold sweat, pallor, severe rash with high fever, blisters, skin peeling, pain in mucous membranes of the mouth/eyes, yellowing of skin or eyes (jaundice), extreme lethargy, sudden and severe headache, thunderclap headache, seizures, altered consciousness, visual disturbances, paralysis, markedly decreased urine output, severe swelling with elevated blood pressure, shock, overdose

Mild side effects

  • Constipation
  • diarrhea
  • dark stools
  • dry mouth
  • nausea
  • vomiting
  • abdominal bloating
  • loss of appetite
  • stomatitis
  • increased blood pressure
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  • facial flushing
  • tinnitus
  • bradycardia
  • tachycardia
  • atrioventricular block
  • bronchospasm
  • general fatigue
  • lethargy
  • headache
  • drowsiness
  • insomnia
  • hallucinations
  • anxiety
  • agitation
  • decreased libido
  • abnormal sensations
  • feelings of heaviness
  • reversible confusional states
  • depression
  • dizziness
  • menstrual irregularities
  • gynecomastia
  • arthralgia
  • dysgeusia
  • muscle cramps

Not everyone experiences these, and they can vary from person to person.

Storage

This medication should be stored in a tightly sealed container to protect it from air and moisture. It is important to maintain a storage temperature between 1 degree and 30 degrees Celsius to preserve the drug's effectiveness.

Appearance and packaging

Appearance

White round film-coated tablets

Package unit

30 tablets/bottle, 1000 tablets/bottle

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

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For anything that needs medical judgment, consult a doctor or pharmacist.

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This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.