Medication and Pharmacology Terms

Medicines, investigational drugs, drug classes, actions, and routes of administration. Browse definitions and meanings below.

868 terms

What is pharmacology?

Pharmacology is the study of how drugs act on the body and how the body acts on drugs. It covers what a medicine does once it arrives at its target, how it is absorbed and eliminated, and why dose, timing and route change the result.

Much of the vocabulary here is shorthand that appears on a prescription or in a clinical note. Route abbreviations, dosing intervals and drug class names all carry exact meanings, and the entries below give each one plainly.

Terms in this topic

Alphabetical order

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.