Dextromethorphan Analgesia in a Human Experimental Model of Hyperalgesia

Conclusions This study shows that low-dose (30-mg) dextromethorphan is antihyperalgesic in humans on the areas of primary and secondary hyperalgesia and reverses peripheral and central neuronal sensitization. Because dextromethorphan had no intrinsic antinociceptive effect in acute pain on healthy skin,N-methyl-d-aspartate receptor may need to be sensitized by pain for dextromethorphan to be effective.
Source: Anesthesiology - Category: Anesthesiology Source Type: research