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What other names is Ergot known by?

Claviceps purpurea, Cockspur Rye, Cornezuelo, Ergot de Seigle, Hornseed, Mai Jiao, Mother of Rye, Secale Cornutum, Smut Rye, Spurred Rye.

What is Ergot?

Ergot is a fungus that grows on rye and less commonly on other grasses such as wheat.

Ergot has an interesting history. During the Middle Ages, ergotism, a severe reaction to ergot-contaminated food (such as rye bread), was common and was known as St. Anthony's fire. This illness was often cured by visiting the shrine of St. Anthony, which happened to be in an ergot-free region of France. Additionally, some historians believe that ergot played a role in the Salem witch hunt of 1692. They think that some women in Salem developed peculiar behaviors and accused other women of being witches as a result of eating ergot-contaminated food.

Despite serious safety concerns, ergot has been used as medicine. Women use it to treat excessive bleeding during menstrual periods, at the start of menopause, and before and after miscarriage. They also use ergot after childbirth to expel the placenta and contract the uterus. Historically, ergot was used to speed up labor, but its use was abandoned when people made a connection between the use of ergot and an increased number of stillbirths.

Certain chemicals in ergot are used in prescription medicines.

Insufficient Evidence to Rate Effectiveness for...

  • Reducing bleeding during menstruation, in menopause, and in connection with miscarriage.
  • Expelling the placenta after childbirth.
  • Other conditions.
More evidence is needed to rate the effectiveness of ergot for these uses.

Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).

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