Herbs are plants or plant derivatives that can be used for their scent, flavor or therapeutic properties. Herbal medicines are sold in many forms including tablets, powders, teas, extracts and fresh plants.
MedlinePlus urges people to remember that products labeled “natural” aren’t always safe and healthy. Herbal medicines do not have to go through the same rigorous testing that prescription drugs do.
Herbs can interact with prescription or over-the-counter medicines. Before using an herbal medicine, get information on it from reliable sources, and discuss its use with your health care provider.