Enhancement of morphine analgesia by tricyclic antidepressants

R. T. Malseed, Frederick J. Goldstein

Research output: Contribution to journalArticlepeer-review

Abstract

Using a cat tail-flick analgetic testing procedure, enhancement of the antinociceptive action of morphine (0.25 mg/kg s.c.) was detected following pre-treatment (1 hour) with 10 mg/kg s.c. of either amitriptyline or nortriptyline. No analgesia was observed following s.c. administration of either antidepressant or saline alone. Both central (amine re-uptake blockade; anticholinergic) and peripheral (decreased hepatic biotransformation) actions of tricyclic antidepressants may have contributed to augmentation of morphine analgesia. © 1979.

Original languageAmerican English
JournalNeuropharmacology
Volume18
StatePublished - Jan 1 1979

Keywords

  • Animal
  • Antidepressive Agents
  • Cats
  • Drug Synergism
  • Male
  • Reaction Time
  • Time Factors
  • Tricyclic
  • amitriptyline
  • analgesia
  • animal experiment
  • cat
  • drug comparison
  • drug potentiation
  • morphine
  • nervous system
  • nortriptyline
  • preliminary communication
  • subcutaneous drug administration

Disciplines

  • Medicine and Health Sciences

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