57

Yes. There is scientific evidence to indicate that Halothane is able to induce cytochrome P450. P450 in turn anaerobically reduces halothane to potentially toxic metabolic compounds that cause liver damage

Cimetidine

Cytochrome P450 allows phenytoin to undergo aromatic hydroxylation to turn into phenol.

The human cytochrome P450 comprises 57 genes. These genes code for enzymes that can have a role in: metabolism of drugs, foreign chemicals, cholesterol metabolism and more. P450 was once thought to be mainly a hepatic drug detoxication system, its now believed to include a myriad of enzymic reactions implicated in important life processes.