Drug classification is the process of categorizing drugs based on their effects, chemical structure, and therapeutic uses. This system helps healthcare professionals understand how different drugs work and their potential risks. Common classifications include stimulants, depressants, opioids, and antibiotics, each serving distinct purposes in medical treatment. Additionally, drug classification can also refer to legal categories, such as controlled substances, which are regulated by law due to their potential for abuse. These classifications help ensure safe prescribing practices and inform patients about the medications they are taking, promoting better health outcomes.