alexa Antipyretic activity of Alstonia macrophylla Wall ex A. DC: an ethnomedicine of Andaman Islands.
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Applied Pharmacy

Author(s): Chattopadhyay D, Arunachalam G, Ghosh L, Rajendran K, Mandal AB,

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Abstract PURPOSE: Alstonia macrophylla Wall ex A. DC. Leaf, used in different ailments by the Onge tribes of Little Andaman Island, India, was investigated for its antipyretic potential. METHODS: The methanol extract and its fractions were tested on normal body temperature and yeast-induced pyrexia in Wistar Albino rats. RESULTS: The leaf extract at oral doses of 200 and 300 mg/kg, and the n-butanol fractions of the extract at 50 mg/kg showed significant reduction in normal body temperature and yeast-provoked elevated temperature in a dose-dependent manner comparable to that of standard antipyretic drug paracetamol. The antipyretic effect was started at 1 h and extended for at least 5 h after the drug administration. CONCLUSIONS: The antipyretic effect was more pronounced when the fraction A and B was administered together, indicating that both the fractions may contain antipyretic compounds which produce an additive effect in combination. Phytochemically these fractions contain beta-sitosterol and ursolic acid.
This article was published in J Pharm Pharm Sci and referenced in Journal of Applied Pharmacy

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