Which condition is Famotidine used to treat?

Famotidine is a medication classified as an H2 receptor antagonist. It is primarily used to reduce stomach acid production. Its main indications include the treatment of ulcers and gastroesophageal reflux disease (GERD). In the case of ulcers, it helps in healing the stomach lining by decreasing the acid that can irritate the mucosal surface. For GERD, famotidine alleviates symptoms such as heartburn and regurgitation by managing the acid that can back up into the esophagus, providing relief from discomfort.

The other conditions mentioned do not align with the therapeutic uses of famotidine. Hypertension requires antihypertensive agents, allergy symptoms typically need antihistamines, and heart failure management involves medications like ACE inhibitors or beta-blockers, none of which relate to famotidine’s mechanism of action or indication for treatment.