dose-response relationship
Association between drug dosage and magnitude of therapeutic effect or adverse events.
Full Definition
A dose-response relationship describes the correlation between the amount of medication administered and the magnitude of the resulting therapeutic effect or adverse events. In psychiatric pharmacotherapy, establishing clear dose-response relationships is crucial for determining optimal dosing regimens and therapeutic windows. The relationship may be linear, curvilinear, or exhibit threshold effects. For efficacy, a positive dose-response relationship suggests higher doses produce greater therapeutic benefit, while for safety, it indicates increased adverse event frequency or severity with higher doses. Regulatory authorities expect demonstration of dose-response relationships to support approved dosing recommendations.
Usage
Usage note: Hyphenate compound terms: 'dose-response curve', 'dose-response analysis'.
In Context
- "The study demonstrated a clear dose-response relationship for both efficacy and somnolence." — Clinical pharmacology report
- "Absence of a dose-response relationship raised questions about the drug's mechanism of action." — Regulatory review document