Stomach and bowels

H2 blockers

Used for

Heartburn, ulcers

How it works

Block histamine's signal (at H2 receptors) that tells the stomach to make acid. Milder than PPIs.

Name clue
-tidine
Examples
  • famotidine (Pepcid)

More in stomach and bowels

See every class

A study and reference aid. Follow the product labeling and your pharmacist for anything about a patient's medicine.

Studying for the PTCE?

Drug classes are a big part of the Medications domain. Gutta's lessons and practice questions cover them, with an explanation for every answer.

Start free