Curly Bristlethistle Herb — Safety & Interactions
Fei Lian · Herba Cardui Crispi
Contraindications
- Cold-pattern bleeding without Blood Heat (pale blood, cold extremities, weak pulse) — cooling herb contraindicated in cold-deficiency haemorrhage
- Spleen-Stomach Deficiency Cold — cool-bitter nature impairs digestive Yang with prolonged use
Cautions
- Standard dose: 9–15 g dried herb or root in decoction; 30–60 g fresh herb
- Antihypertensive drugs: additive blood-pressure lowering; monitor in patients on antihypertensives
- Anticoagulants: complex haemostatic-anticoagulant interaction; monitor bleeding parameters
- Pregnancy: Blood-cooling and potentially Blood-moving action; traditionally used with caution in pregnancy
- Asteraceae allergy: contact dermatitis possible in highly sensitised individuals
Drug Interactions
| Drug Class / Substrate | Mechanism | Severity | Source |
|---|---|---|---|
| Antihypertensive drugs — additive blood-pressure lowering via flavonoid vasodilation | |||
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.