A transdermal patch is a form of medical treatment that is administered through the skin. Commonly referred to as a skin patch, it is used to deliver medication or hormones directly into the bloodstream. There are several synonyms for the term transdermal patch which include patch, adhesive patch, skin delivery system, transdermal delivery system, dermatological patch, and matrix patch. Each variant of the term refers to the same method of delivering medication through the skin of the patient. Transdermal patches are becoming increasingly popular and widely used in the medical field due to the convenience and comfort they provide.