Chasteberry, also referred to as vitex, is a medicinal supplement derived from the fruit of the Vitex agnus castus plant. Traditionally, chasteberry is used to reduce menstrual irregularities and premenstrual syndrome, or PMS, and menopausal symptoms. This natural supplement may also enhance female fertility. However, additional research is needed to support these purported health benefits of chasteberry.
Warning
The amount of chasteberry you should take daily may vary depending on your age, body weight or health status. Always consult a doctor before taking this herbal treatment to ensure you take the appropriate dosage of chasteberry for your medical condition.
Recommended Dosage
Health professionals with the University of Michigan Health System recommend women take 20 mg of concentrated chasteberry each day to alleviate PMS symptoms. Typically, women need to take chasteberry daily for a period of several months before they experience relief of PMS symptoms. Unless otherwise instructed by a doctor, do not use chasteberry continuously for more than four to six months. Additionally, stop taking chasteberry immediately and contact your doctor if you become pregnant.
Potential Adverse Effects
Chasteberry is generally well tolerated when used as directed. Infrequently, mild side effects, including nausea, rash, weight gain, difficulty sleeping, headache or acne, may occur while you are taking chasteberry. These side effects may arise progressively and may persist for the duration of treatment. If any of these side effects become severe, seek further evaluation and care from your medical provider.
Interactions with Medications
Chasteberry may interact with certain medications. Do not use this herbal treatment in conjunction with any type of hormone therapy, including birth control pills or estrogen, because chasteberry may reduce the effectiveness of these medications. Chasteberry may reduce the effectiveness of metoclopramide. In addition, avoid taking chasteberry and Parkinson's disease medications, such as levodopa or ropinirole, because this treatment combination may increase the effectiveness of these prescription drugs.
Contraindications
If you have certain health concerns, treatment with chasteberry may be inappropriate. Do not take chasteberry if you have a pre-existing hormone-sensitive condition, such as ovarian, uterine or breast cancer, endometriosis or uterine fibroids. Chasteberry may mimic the action of estrogen, which may worsen symptoms associated with your health problem. Additionally, do not use chasteberry if you are using in-vitro fertilization to become pregnant.
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