St. John's wort can affect the way your body processes prescription and over-the-counter drugs. When this happens, your medicine may…
Some dietary supplements can cause interactions with prescription and over-the-counter medicines. Learn which ones you should watch out for.
Learn why you need to know about your medicines in order to help prevent adverse drug reactions.
Over-the-counter medicines can cause unpleasant (adverse) effects. Be aware of your risks so you know how to avoid them.