Pharmacological evaluation of alcoholic extract of salai guggal (AESG) has been carried out in experimental animals. AESG displayed marked anti-inflammatory activity in carrageenan induced oedema in rats and mice and dextran oedema in rats. It was equally effective in adrenalectomised rats. In formaldehyde and adjuvant arthritis, AESG produced prominent anti-arthritic activity but no significant effect was observed in cotton pellet-induced granuloma test. It inhibited inflammation induced increase in serum transaminase levels and leucocyte counts but lacked any analgesic or anti-pyretic effects. The gestation period or parturition time in pregnant rats or onset time of castor oil-induced diarrhoea was unaffected by AESG and no significant effect was seen on cardiovascular, respiratory and central nervous system functions. No ulcerogenic effects were found in the rat stomach. The oral and intraperitoneal LD50 was greater than 2 g/Kg in mice and rats.
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Singh, G.B., Atal, C.K. Pharmacology of an extract of salai guggal ex-Boswellia serrata, a new non-steroidal anti-inflammatory agent. Agents and Actions 18, 407–412 (1986). https://doi.org/10.1007/BF01965005