Tea Leaves … Safety & Interactions
Cha Ye · Folium Camelliae Sinensis
Use with caution. Practitioner review recommended before use.
Contraindications
- Insomnia
- Cold weak digestion without heat or phlegm signs
Cautions
- Brewed tea and concentrated tea extracts are not interchangeable from a safety standpoint.
- Caffeine sensitivity may cause palpitations, anxiety, reflux, tremor, or sleep disruption.
- Very heavy intake can reduce nonheme iron absorption in susceptible people.
Drug Interactions
| Drug Class / Substrate | Mechanism | Severity | Source |
|---|---|---|---|
| Possible additive stimulant effects with caffeine-containing drugs or supplements | |||
| Very high intake may complicate warfarin management because tea leaves contain vitamin K | |||
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.