Journal of Pharmaceutical Sciences 1992-Apr
Absorption of acetylsalicylic acid from the rat nasal cavity.
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خلاصه
The fate of salicylate in the plasma of rats was followed after nasal, intravenous, and oral administration of 2.0-mg doses of aspirin. Aspirin was well absorbed following nasal administration of a neutralized, nonirritating solution containing triethanolamine. The rate of absorption was slower than that of other nasally administered drugs, such as propranolol or progesterone. The bioavailability of aspirin following nasal administration was 100%, whereas the oral bioavailability was only 58.8% at the dose studied.