Abstract
The effects of pirenzepine on the serum gastrin levels in the basal state and in response to a liquid test meal were investigated in nine patients with gastric ulcer. Single-dose administration of the drug caused a significant decrease in the basal gastrin level and significant inhibition of the serum gastrin response. When measured 12 h after the end of drug treatment for 7 days, the serum gastrin levels in the basal state and in response to a test meal tended to be high, but the differences were not statistically significant.
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