MedicalTerminology DB
Diseases & Disorders

drug tolerance

Meaning of drug tolerance: A condition that occurs when the body gets used to a medicine so that either more medicine is needed or different medicine is needed.

Definition of drug tolerance

A condition that occurs when the body gets used to a medicine so that either more medicine is needed or different medicine is needed.

Written and maintained by James Murray Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations.

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.