Omeprazole (oral route) - Side effects & dosage - Mayo Clinic
OTC omeprazole 20 mg, often sold under the brand name Prilosec OTC or as store-brand generics, can be found at most major retailers and pharmacies:
Omeprazole 20 mg is widely available both as an medication for frequent heartburn and as a prescription drug for more complex conditions like GERD or ulcers. While the 10 mg and 40 mg strengths typically require a prescription in many regions, the 20 mg dose is uniquely available in both formats. Where to Buy Over-the-Counter (OTC)
