Prilosec OTC is an over-the-counter medicine used to treat frequent heartburn. Its active ingredient, 20 mg of delayed-release omeprazole, works by blocking the production of excess stomach acid for a full 24 hours after taking one pill each morning. It's recommended by doctors and gastroenterologists and may take between 1 to 4 days for its full effect. The treatment should not be taken more than once every four months or longer than two weeks unless directed otherwise (This content is generated by AI)

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