Drugs, substances, and certain chemicals used to make drugs are classified into five (5) distinct categories or schedules depending upon the drug’s acceptable medical use and the drug’s abuse or …

Search or browse a complete list of drugs marketed in the U.S. organized by class or chemical type.

Learn about drug classifications with clear explanations and examples. Understand how drugs are grouped by use, action, structure, and legal status.

Apr 14, 2025 · Drugs are classed according to their chemical makeup, mechanism of action, and legality. Some drugs have more than one classification. Most medical professionals use …

Oct 26, 2025 · A drug class is a group of medications with similar properties. Medications may be grouped by how they work, their chemical structure, or the conditions they treat. These classifications …

Aug 25, 2025 · Explore the different types of drugs—including stimulants, depressants, hallucinogens, opioids, cannabinoids, inhalants, and more—learn their effects, legal classifications, and risks in this …

Aug 23, 2024 · Drug classifications refer to the Drug Enforcement Administration's scheduling of drugs based on their abuse potential, medical use, and other criteria. Learn what the different schedules of …

A drug class is typically defined by a prototype drug, the most important, and typically the first developed drug within the class, used as a reference for comparison.

View all drug classes alphabetically and browse medications by class.

FDA provides consumers and industry with safety, regulatory and availability information for various drugs by drug class. From A to Z. Topics include: acetaminophen, estrogen, insulin,...