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It is indicated in duodenal ulcer (a sore on the first part of the small intestine) and benign (non-cancerous) gastric ulcers (sores on stomach lining), Zollinger-Ellison syndrome (a rare digestive disorder that results in excessive gastric acid). It is also used to prevent relapse of duodenal ulcer and for prevention and treatment of gastroesophageal reflux disease (a disorder that causes the digestive juices, foods, or fluids back up from the stomach into the esophagus).

Headache, dizziness, constipation (difficulty in passing stool), diarrhea (watery stools), nausea, rash, GI upset, abdominal discomfort, anorexia (eating disorder), fatigue, liver enzyme abnormalities, angioedema, arthralgia (joint pain), muscle cramp are some of its side effects. Reversible gynecomastia (enlargement of breasts tissues in males), toxic epidermal necrolysis (a rare and serious skin condition), AV block (a type of heart block, in which there is an interruption in transmission of impulse from atrium to ventricle).



It is contraindicated in patients who are allergic to histamine and in patients with stomach cancer, moderate and severe kidney disease, and kidney failure.

  1. What is the action of Famotidine?


It is a H2 blocker and works by reducing the amount of acid in the stomach.


  1. What can you not take with famotidine?


Do not take this medication with other products containing famotidine or other H2 blockers.


  1. What are the side effects of famotidine?


In adults it may cause dizziness, headache, constipation (difficulty in passing stool) or diarrhea (watery stools). In children it may cause agitation (nervousness), restlessness and crying for no reason.


  1. How should you take famotidine?


 It can be taken with or without food. To prevent heartburn take it 15-60 minutes before eating or drinking beverages that may cause indigestion.


  1. How many doses can I take of famotidine?


Do not take more than 2 doses in 24 hours, unless directed otherwise.

This medicine should not be taken with food.
  • Take with or without meals.
  • Shake oral suspension vigorously for 5-10 seconds before intake. If a chewable tablet is taken, chew thoroughly before swallowing
  • If antacid is to be taken, wait 30 to 60 minutes after taking famotidine.
  • Contact prescriber if there is acute headache, unrelieved constipation (difficulty in passing stool) or diarrhea (watery stools), palpitations (feeling of heart beating fast, black tarry stools, abdominal pain, rash, worsening of condition, or recurrence of symptoms after therapy is completed.
  • Avoid alcohol and smoking during therapy.
Yes insomnia may occur after using famotidine. However, it does not make one sleepy.
Yes, these antacids eliminate excess gas.
Famotidine can be taken with or without food.
Yes, Constipation is a side effect of this drug.
No, Pepcid passes into breast milk and may harm a nursing baby.
Muscle pain and cramps are a common side effect of this drug.
It is recommended that if you have trouble swallowing, you should consult your physician before using this product.
There is no evidence of risk is determined in pregnant females; therefore, caution is advised. Consult your doctor before taking this medication. 
This medication is contraindicated in lactating females. Consult your doctor before breastfeeding.
 Patients with impaired renal (kidney) function and gastric carcinoma (stomach cancer) are sensitive to the drug. Malignancies should be excluded before the use of this medicine. Blood count and liver functioning should be monitored regularly of patients who are on long term therapy.  


Dawaai's intention is to make sure that it's consumers get information that is accurate, reviewed by an expert and error-free. However, the information mentioned here should not be used as a replacement for the advice of a qualified physician. The information given here is for informational purposes only, which may not cover all possible precautions, side effects, contraindications or drug interactions. Consult your doctor and discuss your queries related to any medicine or disease.


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