What type of medication is known to reduce stomach acid?

Antacids are medications specifically designed to neutralize stomach acid, providing relief from symptoms associated with conditions such as heartburn, indigestion, or gastroesophageal reflux disease (GERD). They work by increasing the pH balance in the stomach, which alleviates the burning sensation caused by excessive acidity.

In contrast, antibiotics are primarily used to treat bacterial infections and have no role in acid reduction. Analgesics are pain relievers that target pain sensations and do not influence stomach acidity directly. Antidepressants are used to manage mood disorders and may have gastrointestinal side effects, but they are not intended for acid reduction. Thus, antacids are the clear choice for reducing stomach acid among the provided options.