Medicine & Other Substances
Any substance, medicine or drug you take can change how your body feels or functions. Prescription medicine can be life-saving and help people improve their health. Over-the-counter (OTC) medicine, herbal products, and vitamin and mineral supplements can also help people maintain or improve their health. Substance use can include the use of illegal substances or not using prescribed medicine and OTC products as directed. It can be harmful to your health and can lead to addiction.