What type of drug is used to decrease acid secretion in the stomach?

Antisecretory drugs are specifically designed to reduce the secretion of gastric acid in the stomach. This is achieved through various mechanisms, including inhibition of the proton pumps responsible for the final step in acid production. These drugs are often used in the treatment of conditions such as peptic ulcers and gastroesophageal reflux disease (GERD), where excessive acid secretion can lead to discomfort and damage to the gastrointestinal lining.

In contrast, laxative drugs are intended to facilitate bowel movements and address constipation, while antidiarrheal drugs are aimed at slowing down bowel motility to reduce diarrhea. Antacids, although used to neutralize existing stomach acid, do not decrease acid production; rather, they act after the acid has already been secreted. Thus, antisecretory drugs are the correct choice for decreasing acid secretion in the stomach effectively.