The company said it expects the US Food and Drug Administration's approvals by July this year.
Par Pharmaceutical's, a subsidiary of Endo International plc, omeprazole and sodium bicarbonate is the generic version of Merck/MSD Consumer Care Inc's Zegerid.
Omeprazole is a proton pump inhibitor (PPI) that decreases the production of stomach acid. Sodium bicarbonate is an antacid that raises stomach pH to keep the omeprazole from breaking down in stomach acid.
Robert Fisher, President of Consumer Health division of Granules USA said, "Continuing to reduce healthcare costs through our partnership with retailers, Granules is happy to offer consumers affordable medication choices."
Shares of the company were trading 3.42 per cent up at 120.95 on BSE.