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Drugs Today 1999, 35(10): 773
ISSN 1699-3993
Copyright 1999 Clarivate
CCC: 1699-3993
DOI: 10.1358/dot.1999.35.10.561696
 
 
Pantoprazole: A new proton pump inhibitor in the management of upper gastrointestinal disease
Bardhan, K.D.
 
 
Pantoprazole, the third proton pump inhibitor (PPI) to become available, has been extensively investigated. Pantoprazole inhibits acid more powerfully than histamine H2 receptor antagonists (H2RAs) and omperazole 20 mg and raises median 24-h gastric pH from about 1.5 to 3-4 in healthy volunteers and in duodenal ulcer patients to above 5. Results from studies have confirmed that pantoprazole is superior to H2RAs in speed of healing and symptom relief in patients with peptic ulcer. In patients with duodenal ulcer pantoprazole was as effective as omperazole 20 mg and in patients with gastric ulcer pantoprazole was statistically superior to omeprazole 20 mg after 4 weeks. In triple combination therapy of peptic ulcer disease, the mean eradication rate of Helicobacter pylori in data pooled from 32 pantoprazole-based studies was 86% and compliance with treatment was about 90%. Results pooled from 5 large clinical trials of gastroesophageal reflux disease showed healing rates significantly superior to those achieved with H2RAs and similar to those of other PPIs at 4 and 8 weeks. Symptom relief was more rapid with pantoprazole and maintenance treatment kept the majority of patients in remission; relapse rates at 1 year were 25-28% on 20 mg daily and 6-22% on 40 mg daily. Maintenance treatment with pantoprazole 40 mg has been shown to keep most patients with aggressive or refractory ulcer and reflux disease in remission for up to 3 years. Pantoprazole was also effective in the management of patients with Zollinger-Ellison syndrome. In volunteers given aspirin, pantoprazole 40 mg proved significantly superior to ranitidine and placebo in preventing the development of mucosal damage and was significantly better than placebo in preventing gastric ulcer and duodenal ulcer in arthritic patients on nonsteroidal antiinflammatory drugs. Clinical trials, postmarketing surveillance and long-term studies have confirmed that pantoprazole is effective and safe for the short- and long-term management of peptic ulcer and reflux disease, with side effects similar in incidence and type to those of H2RAs.


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