An ancient herb is renowned for its use to treat stomach complaints and nausea. Origin: South East Asia. May be useful for but not limited to: Treat sinus congestion. Nervousness & upset stomach. Bronchitis & as a lung tonic. Migraines. Blood cleanser & blood builder. Warnings Avoid high doses in pregnancy (max of 2000mg/day). Commission E suggests people with gallstones consult their physician before use.Use with caution in gastric ulcers or reflux. Suspend high dose use (>10g) 1 week before surgery. Known drug interactions: Avoid with warfarin (Coumadin, Marevan). May increase prothrombin time and international normalised ratio (INR) values. Patients should be monitored for prothrombin & INR values. Use with caution: Antiplatelet medications including Aspirin (including Aspro, Solprin, Astrix, Cartia). Co-prescription may increase bruising & bleeding.