 [ Symptoms ] what is omeprazole used for [ Disease ] omeprazole is also known as prilosec otc its actually a proton pump inhibitor and it is used to treat like heartburn if you have it for more than two or three episodes a week it can be used longer term in the treatment of gerd or a gastroesophageal reflux disease or then also possibly in the healing of ulcers it is a very popular product it is very well tolerated but once again we want to make sure that patients know that pharmacists need to know if you are taking this medication over the counter it could still interact with some other medications so present your medication list to the pharmacist of everything that you are taking and we will make sure that everything looks okay