W. Diamantis, J. Melton, R. Sofia
Jul 1, 1979
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Journal
European journal of pharmacology
Abstract
Meseclazone, 5-CSA and several representative NSAIDs caused concentration-dependent relaxation of the tracheal ring preparation and are listed in order of descending potency: isoproterenol greater than naproxen greater than ibuprofen greater than diflunisal greater than tolmetin approximately equal to fenoprofen approximately equal to indomethacin greater than phenylbutazone greater than meseclazone greater than 5-CSA greater than aspirin. This relaxation may be related to inhibition of prostaglandin synthetase, but relative potencies of NSAIDs in this test do not necessarily correspond to their potency in inhibiting PG synthethase in other tissue. Thus other factors may play a role.