Pharmacokinetic-pharmacodynamic relationship quantitates drug exposure-response dependencies guiding dose selection. Exposure thresholds identify minimum levels producing benefit. Toxic thresholds define maximum tolerated exposure. Hill coefficients quantitate curve steepness. Population heterogeneity produces varied dose-response profiles.
Regulatory submissions incorporate dose-response justification. Biomarker assessment predicts individual responses. Therapeutic drug monitoring guides dose optimisation. Clinical outcomes correlate with exposures. Post-approval monitoring confirms predicted relationships.
Pharmacokinetics & Pharmacodynamics (PK/PD)
Pharmacokinetic-Pharmacodynamic Relationship
The pharmacokinetic-pharmacodynamic relationship describes how drug exposure influences the onset, magnitude and duration of therapeutic or biological effects.
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