Are herbal medications safe?
There are a few general cautions to follow when taking herbal medications:
Use herbs with caution if you are taking prescription medications. Always ask a health care provider to review your medications for any potential herb-drug interactions.
Because they contain a variety of chemical components, many herbs may cause temporary adverse effects such as nausea, vomiting and gastrointestinal upset.
Large doses of herbs may increase the potential of adverse effects.