Contra indicated in people with allergies to the Compositae family of plants (e.g. chamomile, ragweed).
Commission E warns against using echinacea in cases of autoimmune disorders, such as multiple sclerosis, SLE and RA, as well as tuberculosis or leukocytosis (Blumenthal et al 2000). This is based on theoretical considerations and has not been tested in controlled trials. In practice, echinacea has been successfully used by herbalists in autoimmune disease without mishap (Mills & Bone 2005). Duration of use Based on evidence that parenterally administered echinacea reversibly depresses immune parameters, Commission E has recommended that echinacea should not be used for more than 8 weeks. However, in a study in which it was taken orally for up to 6 months, no changes in immune parameters were detected (Vonau et al 2001). As such, no conclusive evidence demonstrates that long-term use is detrimental.
Was this article helpful?