Pain relief following herniotomy: a double‐blind randomized comparison between naproxen and placebo

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Abstract
Sixty consecutive out-patients were randomly assigned to have either a non-steroid anti-inflammatory drug (naproxen 500 mg) or an identical placebo administered as suppositories half an hour before unilateral herniotomy. Within 1.5 h after the end of surgery, pain scores were significantly improved in patients receiving naproxen (P < 0.02). The long-term analgesic effect was measured indirectly by registering the postoperative requirements for supplementary analgesic doses of acetylsalicyclic acid 1 g plus codeine 20 mg. The time elapsing before the first demand for additional analgesics was prolonged by median 1.5 h, and the need for further analgesic treatment during 24 h was significantly reduced (P < 0.003) in the naproxen group (median, 2 doses) compared to the placebo group (median, 4 doses). No statistically significant difference was found between the groups with regard to the occurrence of side-effects.