Vitex (
chasteberry) is a perennial plant said to have beneficial medicinal properties. It is used for various conditions, such as infertility, menstrual irregularities, and low breast milk supply. Vitex is also known as chasteberry, as the herb was traditionally used by celibate monks to reduce sexual desire.
Vitex contains a variety of different active compounds, such as essential oils and flavonoids. There are many different "active" compounds in this plant, and it is probably a combination of the compounds that is responsible for most of its medicinal properties.
Vitex seems to stimulate dopamine receptors, which indirectly inhibits the release of the hormone prolactin (a hormone involved in breastfeeding). However, this effect seems to occur with high doses of the supplement; low doses appear to have the opposite effect on prolactin (causing an increase in the hormone). Vitex may also affect other receptors, such as acetylcholine and opioid receptors.
The supplement also appears to have effects on other hormones, such as estrogen and progesterone. While low doses may decrease estrogen levels, some compounds in vitex may have estrogen-like properties. Low doses appear to increase progestin levels. Interestingly, high doses do not seem to affect progesterone or estrogen levels.
There is growing evidence to suggest that this supplement may actually work for treating premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD). However, more research is necessary to confirm these findings and to explore the possibility that the product may be effective for other uses as well
(see Does Vitex Work? for more information).
As with most
dietary supplements, there is no well-established standard dosage for vitex, although general guidelines may be obtained from a few clinical trials.
Even though it is a "natural" product, vitex can cause side effects. Some of the reported side effects include:
(Click Vitex Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
When used appropriately, vitex is probably safe for many people. However, some people may be more likely to experience problems. Therefore, you should talk with your healthcare provider prior to taking this supplement if you have:
- Hormone-sensitive conditions, such as:
- Cancer
- Uterine fibroids
- Endometriosis
- Infertility
- Any allergies, including allergies to foods, dyes, or preservatives.
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about any other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
(Click Is Vitex Safe? for more information, including any available warnings and precautions.)
What If I Take an Overdose?
It is not clear what exactly to expect from an overdose with this herb. If you think you or someone else may have taken too much, it is important to seek immediate medical attention.
Storage Methods for Vitex
Refer to the label of your individual product for information on how best to store this supplement. Keep all medications and supplements out of the reach of children.
