Chasteberry
Chasteberry has not been associated with serious side effects. However, it can cause gastrointestinal problems, acne-like rashes, and dizziness.
Chasteberry may affect certain hormone levels. Women who are pregnant or taking birth control pills or who have a hormone-sensitive condition (such as breast cancer) should not use chasteberry.
Because chasteberry may affect the dopamine system in the brain, people taking dopamine-related medications, such as certain antipsychotic drugs and Parkinson's disease medications, should avoid using chasteberry.
Red Clover
Red clover seems to be safe for most adults when used for short periods of time. No serious adverse effects have been reported.
Because red clover contains estrogen-like compounds, there is a possibility that its long-term use would increase the risk of women developing cancer of the lining of the uterus. However, studies to date have been too brief (less than 6 months) to evaluate whether red clover has estrogen-like effects on the uterus.
It is unclear whether red clover is safe for women who are pregnant or breastfeeding, or who have breast cancer or other hormone-sensitive cancers.
Sage
Sage is generally regarded as safe by the U.S. Food and Drug Administration and is approved for food use as a spice or seasoning. However, some species of sage contain thujone, which can affect the nervous system. Extended use or taking large amounts of sage leaf or oil may result in restlessness, vomiting, vertigo, rapid heart rate, tremors, seizures, and kidney damage. It also may lead to wheezing. Ingesting 12 drops or more of the essential oil is considered a toxic dose.
Drug interactions with sage have not been thoroughly studied.
Sage can stimulate allergic or hypersensitivity reactions. Skin contact may result in inflammation. Ingesting sage powder or dust may cause breathing difficulties.
Hoodia
Hoodia's safety is unknown. Its potential risks, side effects, and interactions with medicines and other supplements have not been studied.
The quality of hoodia products varies widely. News reports suggest that some products sold as hoodia do not contain any hoodia.
From NCCAM.NIH.gov
