Pharmacokinetics and Pharmacodynamics in Drugs

Pharmacokinetics is currently defined as the time study of drug absorption, distribution, metabolism, and excretion. Clinical pharmacokinetics is the application of pharmacokinetic principles to the safe and effective therapeutic administration of drugs in an individual patient. The primary goals of clinical pharmacokinetics are to increase the effectiveness of the patient's drug treatment and to reduce toxicity. The development of strong correlations between drug concentrations and their pharmacological responses has enabled clinicians to apply pharmacokinetic principles to real patient conditions.