of pain in both phases (p<0.05). Inhibition of α -adrenergic system was

not be able to attenuate the anti-nociceptive effect of the extract.

These results propose the involvement of sertoninergic and opioidergic systems in the...

the anti-nociceptive effect of the extract. Discussion: The involvement of sertoninergic system in anti-nociceptive effect of the T.p. extract is proposed by the results. Also the involvement of opioidergic system has to be mentioned in this effect....