<P> Drug metabolism is the metabolic breakdown of drugs by living organisms , usually through specialized enzymatic systems . More generally , xenobiotic metabolism ( from the Greek xenos `` stranger '' and biotic `` related to living beings '' ) is the set of metabolic pathways that modify the chemical structure of xenobiotics , which are compounds foreign to an organism 's normal biochemistry , such as any drug or poison . These pathways are a form of biotransformation present in all major groups of organisms , and are considered to be of ancient origin . These reactions often act to detoxify poisonous compounds ( although in some cases the intermediates in xenobiotic metabolism can themselves cause toxic effects ) . The study of drug metabolism is called pharmacokinetics . </P>
<P> Drug metabolism is the metabolic breakdown of drugs by living organisms , usually through specialized enzymatic systems . More generally , xenobiotic metabolism ( from the Greek xenos `` stranger '' and biotic `` related to living beings '' ) is the set of metabolic pathways that modify the chemical structure of xenobiotics , which are compounds foreign to an organism 's normal biochemistry , such as any drug or poison . These pathways are a form of biotransformation present in all major groups of organisms , and are considered to be of ancient origin . These reactions often act to detoxify poisonous compounds ( although in some cases the intermediates in xenobiotic metabolism can themselves cause toxic effects ) . The study of drug metabolism is called pharmacokinetics . </P>
what enzyme system is linked to the metabolism of toxins and drugs
what enzyme system is linked to the metabolism of toxins and drugs
xenobiotic metabolism
xenobiotic metabolism