Homeopathic Arnica in postoperative haematomas: a double-blind study

Dermatology. 2000;201(4):347-8. doi: 10.1159/000051551.


Objective: To determine whether homeopathic Arnica can reduce postoperative haematomas in venous surgery.

Design: Randomized, prospective, multicentric, double-blind placebo-controlled trial.

Participants: 130 consecutive patients undergoing saphenous stripping (204 legs), hospitalized in a clinic.

Interventions: A homeopathic medicine (Arnica CH5) and an indistinguishable placebo, administered sublingually by a nurse the night before and immediately after the operation.

Outcome measures: Clinical evaluation of haematomas 6 days postoperatively.

Results: Groups were well matched (sex, age, history of bleeding or thrombosis, drug intake, previous intake of homeopathic drugs, type of operation and anaesthesia, operator). One drop-out has been replaced. No statistically significant difference in postoperative haematomas was found between the Arnica and placebo groups (p = 0.342). Subanalysis of all other items did not reveal any statistical difference either.

Conclusions: In this study, with this dosage, we did not observe any preventive effect of homeopathic Arnica CH5 on poststripping haematomas.

Publication types

  • Clinical Trial
  • Multicenter Study
  • Randomized Controlled Trial

MeSH terms

  • Arnica / therapeutic use*
  • Double-Blind Method
  • Female
  • Hematoma / prevention & control*
  • Hemorrhage / prevention & control
  • Homeopathy
  • Humans
  • Male
  • Middle Aged
  • Phytotherapy*
  • Plants, Medicinal*
  • Postoperative Complications / prevention & control*
  • Prospective Studies
  • Treatment Outcome
  • Varicose Veins / surgery