Definition: Pharmacology or Pharmacokinetics are two separate but related fields within Biology that deal with the biological effects of drugs on living organisms. Pharmacology refers to the scientific study of the mechanism by which a drug acts upon its target cell, called a receptor. This field also includes the analysis of how substances enter and leave cells during the process of drug metabolism and the regulation of drug action. Pharmacokinetics is concerned with the rate at which drugs are metabolized by the body and eliminated from the bloodstream. It involves the study of factors that influence drug metabolism, including the interactions between different molecules within the body and the actions of hormones, vitamins, and other substances that affect drug metabolism. This field also includes studies on how drugs are taken up or released from the body. Both fields have important applications in medicine and pharmacology is fundamental to understanding how drugs work in the human body.
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