Active Ingredient: Kirkland Signature Acid Controller Maximum Strength contains 20 mg tablets of an H2 Blocker. These work by partially blocking acid production in stomach cells through the inhibition of histamine, a substance that stimulates stomach acid secretion.

Heartburn Relief: Both over-the-counter and prescription H2 blockers effectively relieve heartburn caused by acid indigestion and sour stomach. They also help prevent meal-induced heartburn.

Key Features:

• USP 20 mg - Acid Reducer
• Compare to Maximum Strength Pepcid
• Prevents and relieves heartburn and indigestion

Packaging: Includes two bottles, with 125 tablets each.