British journal of clinical pharmacology
-
Br J Clin Pharmacol · Sep 1996
Randomized Controlled Trial Comparative Study Clinical TrialA randomized, double-blind, placebo-controlled trial comparing pethidine to metamizol for treatment of post-anaesthetic shivering.
1. Shivering is frequent during the post-anaesthetic recovery period, and there is no clear consensus about the best strategy for its treatment. We tested the efficacy of two commonly used analgesic drugs, pethidine and metamizol. 2. ⋯ Both drugs were well tolerated. 4. The persistence of shivering at 45 min in two thirds of placebo-treated patients indicates that drug treatment is worthwhile; metamizol produces a better postanaesthetic shivering response than placebo, especially 15 and 45 min after drug administration; the efficacy of pethidine was the highest and the response to it appeared more quickly; however, at 45 min it was similar to that observed with metamizol. 5. Both metamizol and pethidine suppress postanaesthetic shivering, but the latter induces a quicker and more reliable response.