Product Details Acid reducer. Treats frequent heartburn. May take 1 to 4 days for full effect. One 14-day course of treatment. Compare to Prilosec OTC active ingredient (This product is not manufactured or distributed by Astrazeneca Pharmaceuticals LP owner of the registered trademark of Prilosec OTC). 100% money back guarantee. Return to place of purchase. www.myleader.com. Made in India.