• J. Pharm. Pharmacol. · Feb 1978

    Gastric erosions induced by analgesic drug mixtures in the rat.

    • A J Seegers, L P Jager, and J Van Noordwijk.
    • J. Pharm. Pharmacol. 1978 Feb 1;30(2):84-7.

    AbstractGastric erosions after oral administration of analgesics separately and in admixture have been examined in adult rats. After administration of acetylsalicylic acid (aspirin), phenacetin, paracetamol and caffeine as single drugs, gastric erosions were only observed with aspirin. The combination of aspirin with phenacetin did not change, that of aspirin with caffeine significantly increased, and aspirin with paracetamol significantly decreased the incidence of gastric lesions compared with aspirin alone. The results for aspirin with paracetamol did not differ from those for the vehicle. Addition of caffeine to the combination of aspirin and phenacetin caused a significant increase in erosions, but when given with aspirin and paracetamol no erosions occurred. The mechanisms underlying the effects of these drugs on aspirin-induced erosions are discussed.

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