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

5 days ago · Drug classes group medications that work similarly, have a similar chemical makeup, or treat similar conditions. This lowers risks and improves treatment.

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 …

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 …

Antianxiety Drugs: Drugs that suppress anxiety and relax muscles (sometimes called anxiolytics, sedatives, or minor tranquilizers). Antiarrhythmics: Drugs used to control irregularities 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.

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

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

11 hours ago · USP Drug Classification The USP Drug Classification (USP DC) is an independent hierarchical therapeutic drug classification system designed to assist with formulary support …

Medications can be grouped into one or more classifications, by the chemical type of their active ingredient or the way they are used to treat a condition. View all drug classes alphabetically …