Preliminary clinical experience with dezocine, a new potent analgesic

Abstract
The analgesic effect of a single intravenous dose of dezocine at various dosage levels was studied in 41 patients suffering from acute renal colic. Twenty milligrams was found to be a very effective dose. Out of 25 injections an excellent response was recorded on 21 occasions, with a mean duration of effect of 3.5 hours. In a further 3 patients, pain relief was considered as fair and of shorter duration. Pronounced dizziness was a nearly constant side-effect of the drug. There was no overall effect on blood pressure or heart rate.

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