Famotidine

Definition

Famotidine is a histamine H2 receptor antagonist used to reduce stomach acid production. It is commonly prescribed for conditions such as GERD, ulcers, and Zollinger-Ellison syndrome.

5 Must Know Facts For Your Next Test

1. Famotidine works by blocking H2 receptors on the cells in the stomach lining, decreasing acid production.
2. It can be taken orally in tablet form or administered intravenously in a hospital setting.
3. Common side effects include headache, dizziness, constipation, and diarrhea.
4. Famotidine has a relatively quick onset of action, typically beginning to work within an hour after administration.
5. It is often preferred over other H2 blockers due to its longer duration of action and fewer drug interactions.

Review Questions

• How does Famotidine function in reducing stomach acid?
• What are some common side effects associated with Famotidine?
• Why might Famotidine be preferred over other H2 blockers?

Related terms

Ranitidine:

Another histamine H2 receptor antagonist previously used for similar indications as Famotidine.

Omeprazole:

A proton-pump inhibitor that also reduces stomach acid but through a different mechanism.

GERD (Gastroesophageal Reflux Disease): A chronic condition where stomach acid frequently flows back into the esophagus, leading to symptoms like heartburn.