PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1523868-11 1992 The increase in toxicity of heroin and methadone produced by ethanol is concomitant with a 40% increase in cytochrome P-450 levels of the pretreated hepatocytes. Heroin 28-34 cytochrome P450 family 4 subfamily F member 3 Homo sapiens 107-123