Although a few studies have researched the effect of chasteberry on premenstrual syndrome, relieving breast pain, and certain types of infertility, they are not sufficient to draw conclusions about its effect.
It may take at least 3 months of use before beneficial effects are seen.
Chasteberry is generally well-tolerated, but it can cause some stomach upset, dry mouth, dizziness, and headache.
You should not use chasteberry if you are pregnant, breastfeeding, or using hormone-containing medications such as oral contraceptives and hormone replacement therapy. People who have hormone sensitive conditions, such as breast cancer, should also not use chasteberry.
Chasteberry should be avoided by people who are using medications that affect dopamine in the body, such as antipsychotic drugs and medications used to treat Parkinson’s Disease.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.
*All medications have both common (generic) and brand names. The brand name is what a specific manufacturer calls the product (e.g., Tylenol®). The common name is the medical name for the medication (e.g., acetaminophen). A medication may have many brand names, but only one common name. This article lists medications by their common names. For information on a given medication, check our Drug Information database. For more information on brand names, speak with your doctor or pharmacist.