Chasteberry is an herbal remedy that has long been used to treat hormone-related conditions in women, including menopause. Although some small studies have demonstrated that chasteberry does have a positive effect on menopausal symptoms, such as hot flashes, those effects have not yet been demonstrated in a well-designed study, according to the National Center for Complementary and Alternative Medicine. Consult with a knowledgeable medical professional before using chasteberry to prevent hot flashes.
Physical Description
Chaste trees–also known as Vitex agnus castus–are shrub-like plants native to the Mediterranean and Central Asia, but it can also be grown in southern portions of the United States. It reaches heights and widths between 10 feet and 20 feet. The leaves and stems are dark green, and the plant produces purple flowers in late spring or early summer. Chasteberries–the fruit of the chaste tree–are used in medicinal applications.
Chemical Constituents
According to the Memorial Sloan-Kettering Cancer Center, chasteberry contains progestins–including progesterone, hydroxyprogesterone and testosterone–that may be beneficial in treating women who suffer from hot flashes caused by menopause. When used internally, it can restore progesterone levels and may also act on estrogen in the body. The exact mechanism by which chasteberry is able to act on human hormones is not known. Before using chasteberry to improve hot flashes, speak with a qualified health-care professional to understand the potential risks.
Dosage
Chasteberry supplements are available in several forms, including standardized extract, fluid extract, fruit extract and tincture. Dosage varies depending on the type of supplement used and the condition being treated. In clinical trials, 4 mg of standardized extract has been the common dose, according to the American Academy of Family Physicians. For fruit extracts, the dosages have varied between 20 mg and 40 mg daily, while the dosage for fluid extract has been 40 drops a day and the dosage for tincture measured from 35 to 40 drops three times a day. Before taking chasteberry supplements, speak with a medical professional to ensure you know what dose is safe for you.
Safety Warnings
Women with certain medical conditions should not use chasteberry because of potential risks. The Memorial Sloan-Kettering Cancer Center advises that women with hormone-related conditions, such as breast cancer, and those taking birth-control pills should not use chasteberry because it can effect estrogen levels. It can also effect the body's dopamine system and is not safe for people who have neurological disorders that are treated with dopamine drugs. To help ensure your safety, always speak with your medical practitioner about your complete medical history before using chasteberry supplements.
Side Effects
Chasteberry does not have any known serious side effects, but some women may notice mild side effects when using the herbal remedy. Among reported side effects are upset stomach, nausea, headaches, dizziness and acne, says the National Center for Complementary and Alternative Medicine.
