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How does Vitex Agnus-castus work?

Vitex agnus-castus seems to affect many hormones that regulate women's reproductive cycles.

Are there safety concerns?

Vitex agnus-castus seems to be safe for most people. Uncommon side effects include upset stomach, nausea, itching, rash, headaches, acne, trouble sleeping, and weight gain. Some women notice a change in menstrual flow when they start taking vitex agnus-castus.

Do not take vitex agnus-castus if:
  • You are pregnant or breast-feeding.
  • You have a hormone-sensitive condition such as endometriosis; uterine fibroids; or cancer of the breast, uterus, or ovaries.
  • You are trying to get pregnant using in-vitro fertilization.

Therapeutic Research Faculty copyright

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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