How can a cytochrome be inhibited?

I think if I remember well is a group of proteins or enzymes that belong to the superfamily of HEME. The metal involved has to be Fe, due to its magnetic powers to exchange protons in molecules...

The term 'cytochrome' means (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration)

The cytochromes are proteins with characteristic strong absorption of visible light, due to their iron containing heme prosthetic groups. Their main function is transfer of electron in photosynthesis...

the phospholipid bilayer

cytochrome p450 is a enzymatic system found in the liver and in the small intestine.