Nexium 24HR Delayed-Release Capsules 22.3mg/Acid Reducer -3 Pack (42 Capsules)

THE NEXIUM® LEGACY SAFE AND EFFECTIVE - The active ingredient in Nexium 24HR has been safely and effectively prescribed to millions of people over the last 15 years. PROVEN SCIENCE - Nexium 24HR has been clinically proven to treat frequent heartburn. Rx TO OTC - The active ingredient in Nexium 24HR is one of the largest-selling prescription medications to become available over the counter to treat frequent heartburn. PPIs, H2s, Antacids PPIs, or proton pump inhibitors like Nexium 24HR, treat frequent heartburn by blocking the production of acid at the source. Protection from frequent heartburn lasts for 24 hours. PPIs may take 1-4 days for full effect, but remains effective over consecutive doses. H2s, or histamine blockers, treat heartburn by blocking one of the signals that tell your body to make acid. They start working within 30 minutes and their effects can last up to 12 hours. If taken more than a few days in a row, they can become less effective.