<prompt> Detoxification of drugs is controlled by ?CytochromeCytochrome p450Cytochrome CCytochrome A  <response>: Ans. is b i.e., Cytochrome p450 Cytochrome p450 enzymes are microsomal enzymes that are involved in phase I metabolism of many drugs. Most of the drugs are metabolized by CYP 3A4 isoform. 