of this preparation exhibited the most potent inhibitory activity, with an IC 50 value of 1.613 mg/ml, followed by the ethanolic extract of Ligusticum sinense (Kot hua bua) (IC 50 = 3.769 mg/ml) and Nigella sativa (Thian dam) (IC 50 = 4.085 mg/ml). The water and ethanol-water extracts of all plants were apparently inactive (IC 50 > 100 mg/ml). These results can support using Prasaprohyai in Thai traditional medicine for antipyretic caused by inflammation. References: [1] Foundation of resuscitate and encourage
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