This site is intended for healthcare professionals

Sign in
Go to /sign-in page

You can view 5 more pages before signing in

Cimetidine

Authoring team

This is a H2-receptor antagonist that is used in the treatment of peptic ulceration, oesophagitis and Zollinger- Ellison syndrome.

Some side effects of cimetidine:

  • Cimetidine blocks hepatic cytochrome P-450 and thus slows the metabolism of certain drugs e.g. phenytoin, warfarin, aminophylline.
  • blocks androgen receptors - results in gynaecomastia
  • causes reversible mental confusion (a rare side effect)
  • associated with agranulocytosis (this side effect is also associated with ranitidine)

Related pages

Create an account to add page annotations

Create a free account

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

Connect

Copyright 2025 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.