Most herbs should be avoided during pregnancy or nursing. During this time, herb use should be followed by a professional. The most common side effects of herbs include stomach upset which may pass when timing with meals is changed, and allergic reactions. Avoid with diarrhea, hot flashes. May cause heavy menses.
Chinese formulas combine with other herbs which modulate it's effect.
Avoid with immune modulating medications. Not for continuous use, caution in allergy to ragweed, caution if family history of allergy. For mild viral or bacterial infections only. Feverfew - Chewing leaves may cause mouth ulcers, contact with leaves may irritate skin. Cause of poor memory should be diagnosed before treatment attempted.