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Meds & supplements  ›  Cimetidine

Medicine · Histamine-2 Receptor Antagonist

Cimetidine

Cimetidine tablets are indicated in: 1.

Drug FactsLabel updated 2022-01-05

Selected manufacturer label information, organised into consistent sections by Sofidex. Read the full label at DailyMed ↗

Drug facts

Used for
  • relieves heartburn associated with acid indigestion and sour stomach
  • prevents heartburn associated with acid indigestion and sour stomach brought on by eating or drinking certain foods and beverages
How to take it
  • adults and children 12 years and over: ▪ to relieve symptoms, swallow 1 tablet with a glass of water ▪ to prevent symptoms,…
  • children under 12 years: ask a doctor
Do not take if
  • if you have trouble or pain swallowing food, vomiting with blood, or bloody or black stools. These may be signs of a serious condition. See your doctor.
  • with other acid reducers

What it is used for

  • relieves heartburn associated with acid indigestion and sour stomach
  • prevents heartburn associated with acid indigestion and sour stomach brought on by eating or drinking certain foods and beverages

What it does

Acid reducer

How to take it

  • adults and children 12 years and over: ▪ to relieve symptoms, swallow 1 tablet with a glass of water ▪ to prevent symptoms, swallow 1 tablet with a glass of water right before or any time up to 30 minutes before eating food or drinking beverages that cause heartburn ▪ do not take more than 2 tablets in 24 hours
  • children under 12 years: ask a doctor

Side effects, and when to stop

  • you need to take this product for more than 14 days
  • stomach pain continues
  • your heartburn continues or worsens

Who should not take it

  • if you have trouble or pain swallowing food, vomiting with blood, or bloody or black stools. These may be signs of a serious condition. See your doctor.
  • with other acid reducers

What to say before you start

you are taking a prescription drug.

Acid reducers may interact with certain prescription drugs.

If you are pregnant or breastfeeding

ask a health professional before use.

Warnings

Allergy a lert: Do not use if you are allergic to cimetidine or other acid reducers.

Keeping it away from children

In case of overdose, get medical help or contact a Poison Control Center (1-800-222-1222) right away.

Active ingredient (in each tablet)

Cimetidine 200mg

Cite this page

NLM

sofidex [Internet]. Daloreum; c2026. Cimetidine; [reviewed 2026 Aug 2; cited 2026 Nov 10]. Available from: https://sofidex.com/patients/medicines/cimetidine

APA 7th

sofidex. (2026, August 2). Cimetidine. Daloreum. Retrieved November 10, 2026, from https://sofidex.com/patients/medicines/cimetidine

AMA 11th

Cimetidine. sofidex. Reviewed August 2, 2026. Accessed November 10, 2026. https://sofidex.com/patients/medicines/cimetidine

The cited date is today’s, because a citation records when you read the page. The reviewed date is when a clinician last checked it.