Pharmacokinetic-Pharmacodynamic (PK/PD) modeling is scientific mathematical tool which integrates relationship PK model to that of PD model and a statistical model (particularly, the intra- and inter-individual variability of PK and/or PD origin). PK-PD approach is used from initial preclinical stage to last clinical phases for exploring the concentration-effect relationships executed using various approaches, such as steady state concentrations versus non-steady state concentrations models and parametric versus nonparametric models. Basing on the concentration-response invariant data basic...