Omeprazole Home>Pharmacy>Drugs_and_Medications>O>Omeprazole     Web Pages Omeprazole Information from the RxList. Prilosec (Omeprazole) Information on acid control, reflux disease and this treatment method from AstraZeneca. DrugDigest: Omeprazole ( Prilosec ) Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.