Usnea

Usnea barbata

Family: Parmeliaceae Evidence: T tinctureextract

A lichen (not technically an herb) containing usnic acid, traditionally used for respiratory and urinary tract support.

Safety Profile

PregnancyInsufficient Data
BreastfeedingInsufficient Data
PediatricNot Recommended

Contraindications

Liver disease.

Interactions

May interact with hepatotoxic drugs.

Side Effects

Topical: generally well tolerated. Internal: GI upset.

Liver: CAUTION: Usnic acid is hepatotoxic. Internal use only in tincture/extract form at proper doses. Do not use weight-loss products containing usnic acid.
Allergy: Lichen allergy.
This information is for educational purposes only. It is not medical advice. Consult a qualified healthcare provider before using any herbal product.