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PHARMACOLOGICAL RESEARCH
Year : 2011  |  Volume : 32  |  Issue : 2  |  Page : 271-274

Pro blood clotting activity of Scoparia dulcis in rats


1 Department of Nidana Cikithsa, Institute of Indigenous Medicine, University of Colombo, Rajagiriya, Sri Lanka
2 Department of Zoology, University of Colombo, Colombo, Sri Lanka

Correspondence Address:
E. R. H. S. S. Ediriweera
Institute of Indigenous Medicine, University of Colombo, Rajagiriya
Sri Lanka
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-8520.92547

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Scoparia dulcis Linn (Family: Scrophulariaceae, Sinhala: WalKoththamalli) is a perennial herb growing in many tropical countries including Sri Lanka. Traditional Physicians in rural down south areas apply crushed S. dulcis plant on cuts and bruises to stop bleeding. S. dulcis may also have Rakta Sthambhana property. The study on effect of decoction (water extract) of S. dulcis on blood clotting time in rats was carried out to investigate this. Two groups of rats, 12 males and 42 females were used in this experimental study. Forty-two female rats were assigned into seven equal groups (n = 6/gp). Different doses of DE (25, 50, 100, 1000, 1500 mg/kg) (group 1-5) or 2 ml of distilled water (DW) (group 6) were orally administered. 0.1 ml of vitamin K was injected intramuscularly (group 7) as reference drug to seventh the group. Twelve male rats were assigned into two equal groups (n = 6/gp), 2 ml of distilled water (DW) and doses of DE (1500 mg/kg) were orally administered. Clotting time was determined on the Days 1, 2, and 7 using Lee and White method. In the DE treated groups with all doses, there was no reduction in clotting time on the Day 1 but a significant reduction of clotting time (P < 0.05) was observed on the Days 2 and 7. In the group treated with vitamin K, there was no significant reduction in clotting time on Day 1 or 2, but there was a significant reduction in clotting time on Day 7. It is concluded that S. dulcis has proclotting activity (rakthasthambhana property) and this was faster than vitamin K.


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