No Known Toxicity Reactions:
0: no known or listed toxicity, as found in the professional literature
Systemic Toxicity Reactions:
1: toxicity only with excess use of this herb or herbal products (such as alkaloids, essential oils, glycerides, phenols, etc.); or toxicity was based on limited findings/ animal studies
2: toxicity occurs with non-definitive signs and symptoms in patient (i.e. gastric upset, nausea, etc.)
3: toxicity with definitive signs and symptoms
4: toxicity with definitive signs and symptoms; significant effects may occur including coma, convulsions, stroke, heart attack, death
IgE-mediated Contact Dermatitis:
5: significant dermatological reactions from immune system reaction
footnotes