British Journal of Anaesthesia, Vol 82, Issue 5 718-722, Copyright © 1999 by The Board of Management and Trustees of the British Journal of Anaesthesia
N. A. Hammer, J. Lilleso, J. L. Pedersen and H. Kehlet
Riluzole modulates several transmitter systems which may be involved in
nociception. Antinociceptive effects have been shown in animal studies, but
there are no human data. Therefore, we have examined the acute analgesic
effect of riluzole in a human model of inflammatory pain induced by a
thermal injury on the distal leg (47 degrees C, 7 min, 12.5 cm2) in 20
healthy volunteers. Hyperalgesia to mechanical and heat stimuli were
examined by von Frey hairs and thermodes. We used a randomized,
double-blind, placebo-controlled design, and subjects received riluzole 100
mg or placebo for 2 days with a 14-day interval. The burns produced
significant hyperalgesia, but riluzole had no acute analgesic effects in
normal or hyperalgesic skin.
CLINICAL INVESTIGATIONS
Effect of riluzole on acute pain and hyperalgesia in humans
Department of Surgical Gastroenterology, Hvidovre University Hospital, Kettegaard Alle 30, DK-2650 Hvidovre, Denmark
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