Rite Aid Acid Reducer Esomeprazole Magnesium is an excellent way to combat and control the symptoms of frequent heartburn. Each bottle in this three-pack has a 14-day supply of capsules for each cycle you might go through over the course of the year. Formulated to slowly release esomeprazole magnesium 20 mg is the key to keeping your heartburn at bay and your symptoms away! May take 1-4 days of treatment for full effect to occur. Features & Benefits: * 24 hour relief * Delayed release capsules * 3 pack of 14-day treatments * May take 1-4 days to work *Compare to the active ingredient in Nexium 24 Hour