Drug Interaction Potentiation

Drug interaction potentiation describes unexpected amplification of pharmacological effects from concurrent drugs. Enzyme inhibition preventing first-pass metabolism dramatically increases bioavailability. Protein binding displacement from concomitant medications increases free concentration. Synergistic pharmacodynamic effects amplify combined response. Transporter inhibition reduces elimination increasing accumulation.

Population pharmacokinetic modelling predicts interaction magnitude. Temporal relationship analysis characterises interaction onset and duration. Risk assessment identifies high-risk combinations warranting avoidance. Regulatory submissions incorporate interaction assessments guiding clinical use. Therapeutic monitoring guides dose adjustments managing interactions.