used
orally and topically: produces antiviral, anti-inflammatory and immunostimulant effects
no single substance has been found as responsible for effects
adverse effects
can cause anaphylaxis in people with allergies to plants in the daisy (ragweed, marigolds) family
drug interactions
risk of hepatotoxicity with steroids like testosterone, ketoconazole, acetaminophen
may lower serum levels of diazepam
may interfere with the action of immunosuppressants