Neuropsychopharmacotherapy  is the scientific study of drug interactions, chemical properties, biological effects, therapeutic uses of drugs in order to select chemical compounds and substances that can be used as new medications. Neuropsychopharmacotherapy refers to pharmacodynamics, pharmacokinetics, toxicology, drug therapeutics, drug action, bodily responses to drug events, biochemical proliferation and differentiation, apoptosis, cell biology, medicinal chemistry, and studies of specific drugs and drug interactions regarding neuropsychological disorders.