DOI: http://dx.doi.org/10.18203/2319-2003.ijbcp20200715

Antinociceptive effect of methanolic extract of Murraya koenigii leaves in swiss albino mice

Arunkumar J., Vijayalakshmi M., Yesodha S., YousufAli A. S., Parthiban R.

Abstract


Background: The objective of the study was to evaluate anti-nociceptive effect of methanolic extract of Murraya koenigii leaves on thermal and mechanical pain in swiss albino mice.

Methods: Thirty adult male swiss albino mice weighing 25-30 grams were selected and allocated in to five groups. Each group consists of six animals. The control group received vehicle (10 ml/kg), standard group received morphine (10 mg/kg) and test groups received dried methanolic extract of Murraya koenigii leaves (100 mg/kg, 200 mg/kg, 400 mg/kg per oral respectively) 1 hour before placing the animal over the hot plate at temperature of 55⁰C . A cut off period of 10 sec was observed to avoid damage of the paw. The response in the form of withdrawal of paws or licking of the paws. The delay in the reaction time denotes analgesic activity. The latency was recorded before and after 15, 30, 60, 120 minutes administration of drug. After washout period of 1 month the same group of animals were utilized to evaluate the analgesic effect by tail clip method for better comparison.

Results: All the doses of Murraya koenigii leaves significantly delayed reaction time in hot plate method and tail clip method. The results were comparable to that produced by standard drug morphine.

Conclusions: Murraya koenigii leaves has analgesic activity which was comparable to morphine.


Keywords


Analgesia, Hot plate method, Murraya koenigii, Tail clip method

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