Abstract
Various extracts of the leaves of Tridax procumbens Linn were screened for hemostatic activity by studying the clotting time of 10 human volunteers employing Lee-White’s method performed in vitro. Out of the ethanolic extract, fresh leaf juice and petroleum extract, ethanolic extract showed positive activity. Th e experiment was successfully tested for statistical signifi cance by employing the paired t-test. Key words: Hemostatic, clotting time, extracts, paired t-test
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