Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.
How long to take it
Short courses of one to two weeks.
Who it's actually for
Adults at cold onset, without autoimmune conditions.
Safe upper limit
UnverifiedNo formal limit; short courses only
Allergic reactions in people sensitive to ragweed and daisies. Prolonged use is not recommended.
No source attached yet. Treat this as a starting point, not a citation, until reviewed.
Interactions to know about
- Immunosuppressants — Ciclosporin, tacrolimus, azathioprine, biologics, steroids
- Liver disease or impairment — Hepatitis, cirrhosis, fatty liver
Other supplements:
Run your full list through the interaction check.
Practical notes
- Avoid with autoimmune disease or on immunosuppressants.