GERD 20-40 mg once daily for 4 wk, increased to 8 wk if necessary & up to 16 wk for healing erosive esophagitis. Maintenance: Continued w/ 20-40 mg once daily. 
Recurrent symptoms 20 mg daily alternatively. 
PUD 40 mg once daily; 2-4 wk for duodenal ulceration & 4-8 wk for benign gastric ulceration. 
Eradication of H. pylori Combined w/ 2 antibacterial in 1-wk regimen: 40 mg bid combined w/ clarithromycin 500 mg bid & either amoxicillin 1 g bid or metronidazole 400 mg bid. 
Patient requiring prophylaxis for NSAID-associated ulceration 20 mg daily. 
Zollinger-Ellison syndrome Initially 80 mg daily, adjusted as required.