The Ulcerogenic Effect on the Oesophagus of Three β‐Adrenoceptor Antagonists, Investigated in a New Porcine Oesophagus Test Model

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Abstract
Drug-induced esophageal lesions have attracted increasing attention during the past few years. A test model is presented for assessing irritative or ulcerogenic effects of potential drugs on the esophagus. The pig esophagus is used, as it is more similar to the human esophagus than models used in other techniques that were suggested. The .beta.-blockers, alprenolol and propranolol, displayed the same ulcerogenic properties with this test model as reported with other test models in the literature. The .beta.1-selective blocker metoprolol, did not have such ulcerogenic effects. The pig model is suggested as the method of choice in evaluating the potential irritative or ulcerogenic effects of pharmaceutical formulations intended for human use.

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