Other Information: Each tablet contains: magnesium 35 mg, sodium 20 mg. Store at up to 77 degrees F (25 degrees C) in a dry place. Misc: (Esomeprazole magnesium) delayed-release capsules 22.3 mg/acid reducer. Treats frequent heartburn. One 14-day course of treatment. May take 1 to 4 days for full effect. Clinically proven to treat frequent heartburn. 1 bottle inside. For most recent product information, visit wwww.Nexium24HR.com. Questions or comments? Call toll-free 1-866-226-1600. Made in France.