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Antipyretic and Analgesic Effects of the Aqueous Extract of the Fruit Pulp of Hunteria umbellata K Schum (Apocynaceae)
Abstract
Methods: Pyrexia was induced in rabbits by intravenous injection of 105 CFU of E. coli/kg. Rectal temperature was monitored at 30, 60, and 90 min post-administration of 250 and 500 mg/kg of the extract. The analgesic effect of the extract was evaluated using acetic acid-induced mouse writhing test. The extract was tested for antimicrobial activity against Staphylococcus aureus, Klebsiella pnuemoniae, Escherichia coli, and Psuedomonas aeruginosa using agar diffusion method. Phytochemical screening of the plant extract was also carried out.
Results: Phytochemical screening revealed the presence of simple sugars, saponins, flavonoids, alkaloids and steroidal compounds. The extract (250, 500 mg/kg) and aspirin produced comparable antipyretic effects up to 60 min. The extract did not inhibit the growth of the microorganisms but
significantly reduced the number of writhes in mice at 250 and 500 mg/kg with results comparable to ASA.
Conclusion: The extract possesses antipyretic and analgesic activities which validate its use in the treatment of pains and fevers.
