Nux Vomica - homeopathy360

Nux Vomica

Natural Order : Loganaceae

Strychnine and Brucine

IP products – used as wormin paste.

Medico-legal Importance

  1. Homicidal: Used as arrow poison
  2. Suicidal
  3. Accidental

Fatal Dose

  1. Strychnine: 50-100 mg
  2. Seed: 1 crashed seed

Fatal Period : 1-2 hours

Signs and Symptoms

  1. Bitter taste with choking in throat.
  2. Stiffness of neck, face and twitching of muscles.
  3. Causes convulsions: Clonic first and then tonic and longer paroxysms (face becomes cyanosed with anxious look eyes scary, eyeballs, prominent and pupils dilated); Risus sardonicus.
  4. Opistotonus
  5. Mental faculties are not affected.
  6. Reflex excitability high with symmetrical extensor thrust.
  7. Death is from medullary paralysis.


  1. No specific antidote.
  2. Move patient to dark room.
  3. Anesthetized by barbiturate.

Differences between Strychnine and Tetanus

Traits Strychnine Tetanus
Onset Sudden; no history of injury but history of ingestion of bitter object. Gradual, with history of injury
Muscle involvement All muscles at a time. Muscles of neck and lower jaw affected first and spreads further.
Muscle relaxation During interval muscles are relaxed. During interval muscles are rigid.
Fatal period Death occurs within few hours. If patient survives for 6 hours probability of survival is great. Death takes place within few hours.
Chemical analysis Detected No poison detected but Clostridium tetani is detected.

Reference: A Handbook of Forensic Medicine and Toxicology by Dr Madona Joseph & Dr Harpreet Kaur

About the author

Dr Purnima Rani

Dr Purnima Rani, M.D. (Hom.) in Repertory from Dr Bhim Rao Ambedkar University, Agra and completed her B.H.M.S. from Nehru Homoeopathic Medical College & Hospital, having clinical experience of 4+ years.