Toad Venom … Safety & Interactions

Chan Su · Venenum Bufonis

Contraindications

  • Pregnancy
  • Arrhythmia, structural heart disease, or significant cardiovascular instability
  • Any unsupervised internal use

Cautions

  • Chan Su contains cardioactive bufadienolides and can cause serious poisoning ... this is not a self-prescribing herb.
  • Crude animal material, patent-medicine doses, and standardized extracts are not interchangeable.
  • Cardiovascular toxicity and narrow therapeutic margin are central modern realities, not theoretical concerns.

Drug Interactions

Drug Class / Substrate Mechanism Severity Source
Digoxin and other cardiac glycosides ... additive toxicity risk
Antiarrhythmic drugs ... possible additive electrophysiologic effects
QT-affecting drugs ... theoretical additive rhythm risk in susceptible patients

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.