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  • Title: Long-term management of duodenal ulcer with pirenzepine and cimetidine: a double-blind controlled clinical trial.
    Author: Galeone M, Cacioli D, Toti GL, Moise G, Giorgi-Conciato M, Stock F.
    Journal: Int J Tissue React; 1983; 5(4):393-6. PubMed ID: 6423561.
    Abstract:
    The effectiveness of pirenzepine in the prevention of duodenal ulcer relapses was assessed by means of a double-blind controlled trial versus cimetidine. Seventy duodenal ulcer out-patients endoscopically healed after a 6-week treatment with either pirenzepine or cimetidine were admitted to the trial. The former pirenzepine patients were treated again with pirenzepine: 1 tablet at breakfast and 2 tablets at bedtime (75 mg daily). The former cimetidine patients were treated again with cimetidine: 2 tablets at bedtime (400 mg daily). They received one placebo tablet at breakfast. Both treatments lasted 12 months. Tablets of a mild antacid were permitted only if necessary to relieve severe ulcer pain and heartburn. Patients underwent clinical and endoscopic assessments after 4, 8 and 12 months of treatment and whenever ulcer symptoms lasted more than 4-5 consecutive days. Only 47 out of the 70 patients that entered the trial underwent all clinical and endoscopic controls. Sixteen out of 23 patients on pirenzepine (70%) and 17 out of 24 patients on cimetidine (71%) did not relapse after 12 months. The difference is not statistically significant. Both treatments were well tolerated. The results show that pirenzepine was as effective as cimetidine in the prevention of duodenal ulcer relapses when administered at a dosage of 75 mg daily (of which 50 mg at bedtime) for one year.
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