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Short Communication Open Access
Conium maculatum Linn. (Umbelliferae) has been traditionally used in the treatment of spasmodic disorders, and to relieve nervous excitation, rheumatic pains in the old and feeble, pain in stomach, pain of gastric ulcer, nervousness and restlessness. Alkaloids have long been considered as bioactive group of constituents present in C. maculatum. Despite a long tradition of use, C. maculatum has not been evaluated pharmacologically to validate its traditional claims for analgesic and antiinflammatory activities. Thus, the present investigations were undertaken with an objective to evaluate alkaloidal fraction of C. maculatum aerial parts for analgesic and antiinflammatory activities. Test doses (100 or 200 mg/kg, p.o.) of alkaloidal fraction were evaluated for analgesic activity using tail flick test and antiinflammatory activity using carrageenan-induced paw oedema test in rats. Morphine (5 mg/kg, p.o.) and indomethacin (5 mg/kg, p.o.) were used as standard analgesic and antiinflammatory drugs, respectively. Alkaloidal fraction of the plant exhibited significant analgesic activity at a dose of 200 mg/kg as it showed significant increase in tail flicking reaction time with respect to the control during 2 h intervals of observation. It also exhibited significant antiinflammatory activity at a dose of 200 mg/kg as it inhibited paw oedema in rats to 71% and reduced the paw volume oneâ??fourth to the control during 1st h of the study. The present investigations suggest that alkaloids are responsible for analgesic and antiinflammatory activities of C. maculatum.
Alkaloids, analgesic, antiinflammatory, Conium maculatum, Umbelliferae