What is the primary use of histamine 2 antagonists?

The primary use of histamine 2 antagonists is to treat gastroesophageal reflux disease (GERD) and gastric ulcers. These medications work by blocking the action of histamine on histamine 2 receptors found in the stomach lining, which leads to a decrease in stomach acid production. This reduction in acidity helps alleviate symptoms associated with GERD, such as heartburn and acid reflux, and promotes healing of gastric ulcers by creating a less acidic environment, allowing the lining of the stomach to repair itself.

Histamine 2 antagonists are effective in managing conditions that involve excess stomach acid, making them an essential component of treatment plans for these gastrointestinal issues.