Name | Vonoprazan |
CAS number | 881681-00-1 |
Description | Vonoprazan (CAS 881681-00-1) is a novel potassium-competitive acid blocker (P-CAB) developed as a next-generation acid-suppressing agent, offering a distinct mechanism of action compared to traditional proton pump inhibitors (PPIs). |
Structural formula |  |
Molecular Formula | C17H16FN3O2S |
Molecular Weight | 345.39 g/mol |
Appearance | White powder |
Quality Standard | 99% |
Storage Condition | Cool dry place( away from the light) |
Shelf Life | >2 years if stored properly |
Sample package | Aluminium foil bag |
Commercial package | Aluminium Tin, Fiber drum |
Origin | China |
Vonoprazan (CAS 881681-00-1) is a novel potassium-competitive acid blocker (P-CAB) developed as a next-generation acid-suppressing agent, offering a distinct mechanism of action compared to traditional proton pump inhibitors (PPIs). First approved in Japan in 2015, it was designed to provide faster, more potent, and longer-lasting suppression of gastric acid secretion by reversibly binding to the H+/K+-ATPase enzyme in gastric parietal cells. Its development addressed limitations of PPIs, such as slow onset and variability in efficacy due to CYP2C19 genetic polymorphisms. Vonoprazan represents a significant advancement in gastroenterology, particularly for acid-related disorders.
Applications and Fields of Use
Vonoprazan is primarily used to treat gastroesophageal reflux disease (GERD), peptic ulcers, and Helicobacter pylori infections, often as part of combination therapy. Its rapid and sustained acid suppression makes it effective for both acute symptom relief and long-term management. Additionally, it is increasingly utilized in erosive esophagitis and as a prophylactic agent for NSAID-induced gastric damage. Unlike PPIs, it does not require acid activation, allowing for consistent efficacy regardless of meal timing, which enhances patient compliance. Research is also exploring its potential in other acid-related conditions, including Zollinger-Ellison syndrome.
Market and Industry Relevance
The global market for vonoprazan is expanding, driven by the high prevalence of GERD and peptic ulcers, particularly in aging populations. Japan remains the leading market due to its early approval, but interest is growing in North America, Europe, and Asia-Pacific, with clinical trials underway for broader regulatory approval. The drug's superior pharmacokinetic profile and reduced dependency on metabolic enzymes position it as a strong competitor to PPIs. Patent protections and the shift toward branded generics in some regions influence pricing and accessibility, but demand is expected to rise as more clinical data supports its advantages.
Precautions and Safety Considerations
While vonoprazan is generally well-tolerated, potential adverse effects include gastrointestinal symptoms (e.g., diarrhea, abdominal pain) and, rarely, hepatic enzyme elevations. Long-term safety data are still being accumulated, necessitating periodic monitoring in chronic use. Drug interactions are less pronounced than with PPIs but may occur with substrates of CYP3A4. It is contraindicated in patients with severe hepatic impairment, and caution is advised in pregnant or breastfeeding women due to limited safety data. Proper storage and handling are required to maintain stability, though it poses no significant environmental or occupational hazards under normal conditions.
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