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

Drug class A drug class is a group of medications and other compounds that share similar chemical structures, act through the same mechanism of action (i.e., binding to the same biological target), …

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 …

Oct 26, 2025 · Drug classes group medications that work similarly, have a similar chemical makeup, or treat similar conditions. This lowers risks and improves treatment.

Aug 23, 2024 · Per the Drug Enforcement Administration (DEA), medical professionals and law enforcement officials use drug classifications to delineate a substance’s legality, based on “the drug’s …

Therapeutic Classification: What the Drug Does in the Body. This part of the chart tells you the main purpose of a drug—what condition it treats or what effect it has. For example: Analgesics are used to …

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 …

Drug Scheduling and Penalties 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 …

Analgesics: Drugs that relieve pain. There are two main types: non-narcotic analgesics for mild pain, and narcotic analgesics for severe pain. Antacids: Drugs that relieve indigestion and...

Drugs are classed according to their chemical makeup, mechanism of action, and legality. Some drugs have more than one classification. Most medical professionals use classifications published in the …