Herbal products are made from plants. The FDA (US Food and Drug Administration) does not inspect or assess these products before they come to market, but they can track claims about the product’s safety or usefulness after it’s on the market. The FDA can take action against a product maker, if the product puts people at risk for illness or injury. Some herbal products can be potent. They can cause side effects or can interact with prescription or OTC drugs. Always tell your doctor or pharmacist if you’re taking herbal products, and keep a list of those products with your list of medications.