Journal of Ethnopharmacology 1995-Mar
Analgesic effect of Dioclea grandiflora constituents in rodents.
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An aqueous fraction and dioclein (5,2',5'-trihydroxy-6,7-dimethoxyflavanone) obtained from the ethanolic extract of the Dioclea grandiflora were tested for their analgesic effect in mice and rats employing acetic-induced writhing and tail flick tests, respectively. When administered intraperitoneally the two agents exhibited significant analgesic effects. The activity of both dioclein and aqueous fraction apparently involves an opiate-like mechanism, since their analgesic action was attenuated by naloxone pretreatment.