Vonoprazan

Vonoprazan is a potassium-competitive acid blocker (P-CAB) that is used in the treatment of acid-related diseases. It is a novel type of proton pump inhibitor (PPI) that has shown to be more effective than traditional PPIs in certain clinical settings.

Mechanism of Action

Vonoprazan works by inhibiting the hydrogen potassium ATPase enzyme in the stomach. This enzyme is responsible for the final step in the production of gastric acid. By inhibiting this enzyme, vonoprazan reduces the production of stomach acid.

Clinical Use

Vonoprazan is used in the treatment of various acid-related diseases, including gastroesophageal reflux disease (GERD), peptic ulcer disease (PUD), and Helicobacter pylori eradication therapy. It has been shown to be more effective than traditional PPIs in the treatment of GERD and PUD, and has also been shown to be more effective in the eradication of H. pylori when used in combination with antibiotics.

Side Effects

The most common side effects of vonoprazan are diarrhea, nausea, and abdominal pain. Other side effects can include headache, dizziness, and rash. In rare cases, vonoprazan can cause serious side effects, including anaphylaxis, Stevens-Johnson syndrome, and toxic epidermal necrolysis.

Contraindications

Vonoprazan is contraindicated in patients with known hypersensitivity to vonoprazan or any of its components. It is also contraindicated in patients with severe liver disease.

Drug Interactions

Vonoprazan can interact with several other medications, including warfarin, digoxin, and certain antifungal drugs. It can also interact with certain foods, including grapefruit and grapefruit juice.

See Also

• Proton pump inhibitor
• Gastroesophageal reflux disease
• Peptic ulcer disease
• Helicobacter pylori

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