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General information
Type: OTC / Prescription

What should I know before taking this drug?
Adverse reactions
Additional information if any

Cimetidine is pronounced as: sye ME ti deen

Cimetidine is a prescription drug available from your pharmacy store only with the prescription of a qualified medical practitioner. 

What is Cimetidine

Cimetidine is histamine receptor blocker

Cimetidine is used in the treatment of Ulcer, Gastro esphageal reflux disease, Zollinger Ellison syndrome, Erosive oesophagitis , Cimetidine works by reducing the amount of acid in the stomach.

  • Take cimetidine exactly as directed by your doctor. If you do not understand the instructions on the prescription ask your pharmacist to explain them to you.
  • Take cimetidine by mouth with meals. To prevent heartburn it is usually taken 30 min before meals.
  • Cimetidine which is available as over the counter medication take once or twice a day to get relief from acidity and it should not be take more than more two weeks with out doctor prescription.
  • If you are using the antacids to get relief from acidity symptoms use cimetidine one hour before or after taking the antacids.

What are the precautions I should follow for Cimetidine?

Children: Cimetidine should not be used in children less than 16 years old

Older people: Cimetidine should be cautiously in older people as they are more sensitive to side effects of it.

Pregnant women: Cimetidine belongs to FDA pregnancy category B. This means that Cimetidine is safe during pregnancy and is not expected to cause any harm to the unborn baby. Always inform your doctor if you are pregnant or are planning for conception.
Lactating women: It is not known whether Cimetidine passes into breast milk or if it could harm the baby. Do not take Cimetidine with out first talking to doctor if you are breast feeding baby.
Other: Do not drink alcohol and smoke tobacco while taking the cimetidine
Cimetidine cause drowsiness, avoid activities which require mental alert ness.

The following are the side effects of cimetidine 

  • Headache
  • Dizziness
  • Drowsiness or
  • Diarrhea
  • gynaecomastia

Store Cimetidine at room temp (15 – 30 degrees C). Avoid excessive heat, moisture or direct sunlight, never store in the bathroom.
Keep it out of reach of children. Make sure that any leftover portion is disposed off safely.

Avoid using or consuming substances that may irritate your stomach, such as:

  • cigarettes; 
  • alcohol and alcohol-containing products; 
  • coffee, tea and chocolate; 
  • acidic or spicy food; 
  • fried foods
It is advisable not to drive the vehicle or operate the machinery until you know how you react to this drug.
It is imp to read manufacturing packaging instruction carefully if available and always do not hesitate to consult pharmacist or physician for any additional information.
Written by: Healthplus24 team
Date last updated: November 18, 2011