Early clinical studies in China suggest astragalus root might also benefit people with chronic viral hepatitis , though it may take one to two months to see results. In preliminary studies in China, astragalus has been used after people suffer heart attacks . 8 More research is needed to determine whether astragalus is truly beneficial in this situation. A decoction is made by boiling the root in water for a few minutes and then brewing the tea. Supplements typically contain 500 mg of astragalus.
Astragalus has no known side effects when used as recommended.
At the time of writing, there were no well-known drug interactions with astragalus. For the convenience of the reader, the information in the table listing the supplements for particular conditions is also categorized. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, 2d ed. Bringing Chinese Herbs to the West. Klepser T, Nisly N. Astragalus as an adjunctive therapy in immunocompromised patients.