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A drug of the proton pump inhibitor class, C16H14F3N3O2S, used to treat esophagitis caused by gastroesophageal reflux disease and other disorders associated with increased gastric acid secretion.

[lanso-, origin unknown + -prazole, antiulcer drug suff.; see omeprazole.]
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Noun1.lansoprazole - antacid (trade name Prevacid) that suppresses acid secretion in the stomach
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt


n lansoprazol m
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Also approved by the FDA were over-the-counter 15 mg lansoprazole delayedrelease capsules, a generic equivalent of GlaxoSmithKline's Prevacid 24HR delayed-release capsules (15 mg).
Additionally, the company has passed the US FDA approval for its ANDA for Lansoprazole Delayed-Release Capsules USP in 15 mg (OTC), which the bioequivalent to the reference listed drug, Prevacid 24HR Delayed-Release Capsules, 15 mg, of GlaxoSmithKline.
Among these drugs are Prilosec OTC, Zegerid OTC and Prevacid 24HR, and the prescription PPIs Nexium, Dexiland, Prilosec, Zegerid, Prevacid, Protonix, Aciphex and Vimovo.
Prevacid 24HR has an average retail price starting at $11.