Coltsfoot Flower Bud — Safety & Interactions
Kuan Dong Hua · Flos Farfarae
Contraindicated / High risk. Use only under practitioner supervision.
Contraindications
- Pregnancy and breastfeeding
- Chronic liver disease or use of hepatotoxic medications
- Use of uncertified coltsfoot products with unknown pyrrolizidine alkaloid content
- Long-term unsupervised use
Cautions
- Coltsfoot products may contain hepatotoxic pyrrolizidine alkaloids, so authenticated low-PA or PA-free sourcing is essential.
- Traditional versatility in cough treatment should not be mistaken for modern safety in casual self-prescribing.
- MSK page not found - drug interaction data not available from Memorial Sloan Kettering integrative medicine database
Drug Interactions
| Drug Class / Substrate | Mechanism | Severity | Source |
|---|---|---|---|
| Hepatotoxic medications - theoretical additive liver injury risk | |||
| Other pyrrolizidine-alkaloid-containing herbs or supplements - additive toxic exposure risk | |||
Pregnancy
Not recommended during pregnancy. Consult a qualified practitioner before any use.
This information is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before using herbal medicines, especially if you take prescription medications.