Drug categories are classifications that help organize different types of medications and substances based on their effects, uses, and potential for abuse. Common categories include stimulants, depressants, opioids, and hallucinogens. Each category has specific characteristics, such as how they affect the body and mind, and their medical applications. Understanding drug categories is important for healthcare professionals and patients alike. It aids in prescribing the right medication for conditions like anxiety, pain, or ADHD. Additionally, knowing the risks associated with each category can help prevent misuse and promote safer use of medications.