Systemic medications are drugs that affect the entire body rather than just a specific area. They are typically taken orally, injected, or absorbed through the skin, allowing them to enter the bloodstream and reach various tissues and organs. This type of medication is often used to treat conditions like infections, autoimmune diseases, and chronic illnesses. Examples of systemic medications include antibiotics for infections, steroids for inflammation, and chemotherapy drugs for cancer treatment. These medications can provide widespread effects, making them effective for managing complex health issues that require a comprehensive approach.