Bean of St. Ignatius, Fi&egrave;ve de Saint-Ignance, Habas de San Ignacio, Ignatia, Ignatia Amara, Lu Song Guo, Saint Ignatius-beans, Strychnos ignatii, Strychnos tieute.<br/><br/>


Overview Information

Ignatius bean is gathered from the Strychnos ignatii plant. The bean is used to make medicine.

Despite serious safety concerns, some people use Ignatius bean to keep from fainting. It is also used as a bitter or tonic; and as an agent to invigorate, refresh, or restore body function.

How does it work?

Ignatius bean contains the poisons strychnine and brucine. These chemicals affect the transmission of nerve impulses to muscle.


Uses & Effectiveness?

Insufficient Evidence for

  • Preventing fainting.
  • As a tonic.
  • Other uses.
More evidence is needed to rate Ignatius bean these uses.

Side Effects

Side Effects & Safety

Ignatius bean is UNSAFE. It is poisonous. The danger is due to the strychnine and brucine it contains. The US Food and Drug Administration (FDA) banned strychnine from nonprescription drug products in 1989.

Side effects and toxicities include restlessness, feelings of anxiety, heightened sense perception, enhanced reflexes, dizziness, painful neck and back stiffness, twitching, jaw and neck spasms, painful convulsions of the entire body, increased muscle tension, difficulty in breathing, seizures, kidney failure, and death.

Long-term use of Ignatius bean, even in amounts so small that they don’t seem to cause side effects, can eventually cause liver damage and be fatal. Laboratory tests on urine and stomach contents can identify strychnine poisoning as the cause of death.

Special Precautions & Warnings:

Since Ignatius bean is poisonous, be especially careful not to take it if you have one of these conditions:

Pregnancy and breast-feeding: It is UNSAFE to use Ignatius bean if you are pregnant or breast-feeding. It is poisonous, and can harm you and the baby.

Liver disease: Strychnine builds up in individuals with liver damage, making poisoning more likely. Also, strychnine build-up can cause liver damage.



We currently have no information for IGNATIUS BEAN Interactions.



The appropriate dose of Ignatius bean depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for Ignatius bean. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

View References


  • Ellenhorn M. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. Baltimore, MD: Williams & Wilkins, 1997.
  • Gruenwald J. PDR for Herbal Medicines. 1st ed ed. Montvale, NJ: Medical Economics Company, Inc., 1998.
  • Hardman J, Limbird L. Goodman and Gillman's The Pharmacological Basis of Therapeutics, 9th ed. New York, NY: McGraw-Hill, 1996.
  • Hardman JG, Limbird LL, Molinoff PB, eds. Goodman and Gillman's The Pharmacological Basis of Therapeutics, 9th ed. New York, NY: McGraw-Hill, 1996.
  • Yarnell E, Abascal K, Hooper C. Clinical Botanical Medicine. Larchmont, NY: Mary Ann Liebert, Inc Publishers, 2003.
  • Oberbaum, M., Schreiber, R., Rosenthal, C., and Itzchaki, M. Homeopathic treatment in emergency medicine: a case series. Homeopathy. 2003;92(1):44-47. View abstract.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

This copyrighted material is provided by Natural Medicines Comprehensive Database Consumer Version. Information from this source is evidence-based and objective, and without commercial influence. For professional medical information on natural medicines, see Natural Medicines Comprehensive Database Professional Version.
© Therapeutic Research Faculty 2018.