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Vonoprazan

Generic Name
Vonoprazan
Brand Names
Voquezna 14 Day Dualpak 20;500, Voquezna 14 Day Triplepak 20;500;500
Drug Type
Small Molecule
Chemical Formula
C17H16FN3O2S
CAS Number
881681-00-1
Unique Ingredient Identifier
1R5L3J156G

Overview

Vonoprazan is a potassium-competitive acid blocker (PCAB) that inhibits H, K-ATPase-mediated gastric acid secretion. PCABs represent an alternative to proton-pump inhibitors for the treatment of acid-related disorders. Unlike proton-pump inhibitors, PCABs are not affected by CYP2C19 genetic polymorphisms and do not require acid-resistant formulations. Furthermore, vonoprazan is 350-times more potent than the proton-pump inhibitor lansoprazole, thanks to its ability to accumulate in the gastric corpus mucosa, specifically in the parietal cells. In February 2015, vonoprazan was first marketed in Japan for the treatment of acid-related disorders and as an adjunct to Helicobacter pylori (H. pylori) eradication. In May 2022, the FDA approved the use of vonoprazan in a co-packaged product containing amoxicillin and clarithromycin for the treatment of H. pylori infection. Studies have shown that the concomitant use of vonoprazan, amoxicillin, and clarithromycin leads to an H. pylori eradication rate of approximately 90%.

Background

Vonoprazan is a potassium-competitive acid blocker (PCAB) that inhibits H, K-ATPase-mediated gastric acid secretion. PCABs represent an alternative to proton-pump inhibitors for the treatment of acid-related disorders. Unlike proton-pump inhibitors, PCABs are not affected by CYP2C19 genetic polymorphisms and do not require acid-resistant formulations. Furthermore, vonoprazan is 350-times more potent than the proton-pump inhibitor lansoprazole, thanks to its ability to accumulate in the gastric corpus mucosa, specifically in the parietal cells. In February 2015, vonoprazan was first marketed in Japan for the treatment of acid-related disorders and as an adjunct to Helicobacter pylori (H. pylori) eradication. In May 2022, the FDA approved the use of vonoprazan in a co-packaged product containing amoxicillin and clarithromycin for the treatment of H. pylori infection. Studies have shown that the concomitant use of vonoprazan, amoxicillin, and clarithromycin leads to an H. pylori eradication rate of approximately 90%.

Indication

Vonoprazan, in combination with amoxicillin and clarithromycin in a co-packaged product, is indicated for the treatment of Helicobacter pylori (H. pylori) infection in adults. Another co-packaged product with only vonoprazan and amoxicillin is also indicated for the treatment of H. pylori infection in adults.

Associated Conditions

  • Duodenal Ulcer
  • Gastric Ulcer
  • Gastric or Duodenal Ulcers Caused by Low-dose Aspirin
  • Helicobacter Pylori Infection
  • Reflux Esophagitis (RE)
  • Develop NSAID-induced gastric ulcers

FDA Approved Products

No FDA products found for this drug

Singapore Approved Products

No Singapore products found for this drug

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