Bioavailability of rectal aspirin in neurosurgical patients.


Serum salicylate levels were determined fluorimetrically in 12 neurosurgical patients after rectal and oral administration of 1.0 g aspirin. There was no significant difference in the AUC-value between the two routes of administration, but a slower rate of absorption with no clear peak effect was found after rectal administration. Rectal aspirin is useful… (More)


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