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Updated: Jul 14, 2026

A Modified Inflammatory Pain Model to Study the Analgesic Effect in Mice
Published on: November 15, 2024
Antinociceptive effect of amitriptyline in mice of acute pain models
Keshab Raj Paudel1, Balbhadra Prasad Das, G P Rauniar
1Department of Pharmacology, B. P. Koirala Institute of Health Sciences, Dharan, Nepal. keshabpaudel@gmail.com
Abstract:
Tricyclic antidepressant drugs induce antinociceptive effect and suggest that their analgesic action could be related to the monoaminergic activity of the drugs. The analgesic activity of amitriptyline was observed in mouse models of acute pain. Mice were divided into different groups and were given amitriptyline in different doses alone and in combination with morphine. Reaction time in Hot-Plate and Tail-Flick tests was observed. Results showed that amitriptyline had antinociceptive effect in acute pain state in experimental models. Amitriptyline in combination with morphine had better analgesic effect than the morphine alone in Hot-Plate test.

