Dexclamol, a candidate for neuroleptanalgesia.

Dexclamol, a potent neuroleptic, was found to potentiate the anesthetic actions of halothane when given at relatively small dose to albino rats. This effect was further enhanced by the addition of phenoperidine, a potent analgesic, at doses that per se did not influence the effects of halothane. Droperidol was used as a standard. In potentiating the effects of halothane, dexclamol behaved both qualitatively and quantitatively in a manner similar to droperidol. Dexclamol, however, was approximately 37 times less potent than droperidol in antagonizing the vasopressor effects of epinephrine.