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omeprazole

American  
[oh-mep-ruh-zohl] / oʊˈmɛp rəˌzoʊl /

noun

Pharmacology.
  1. a drug, C 17 H 19 N 3 O 3 S, that inhibits the formation of gastric acid, used in the treatment of peptic ulcers and acid reflux.


Etymology

Origin of omeprazole

First recorded in 1980–85; origin uncertain: perhaps from o(xy-) 2 ( def. ) + me(thyl-) ( def. ) + p(y)r(idine) ( def. ) + (benzimid)azole ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Medications such as omeprazole, pantoprazole, and esomeprazole work by blocking the H+, K+, ATPase enzyme, also known as the proton pump.

From Science Daily • Feb. 26, 2026

To conduct the experiment, adult rats were separated into two groups: a control group and a group that received omeprazole.

From Science Daily • Feb. 26, 2026

Some physicians encourage patients to take this herbal medicine if they experience rebound reflux when discontinuing a proton pump inhibitor such as esomeprazole, lansoprazole or omeprazole.

From Seattle Times • Nov. 29, 2023

Perrigo set up a subsidiary in Israel, with no employees and no offices, to buy the omeprazole.

From New York Times • Jul. 7, 2022

I suspected perhaps one of his meds was causing problems, but I didn’t realize it might be the omeprazole.

From Seattle Times • Apr. 13, 2022