Phenytoin, folate, vitamin B12, and cyanide.
D003486:Cyanides / Q000378:metabolism*; D005492:Folic Acid / Q000627:therapeutic use*; D006801:Humans; D006879:Hydroxocobalamin / Q000627:therapeutic use*; D010672:Phenytoin / Q000009:adverse effects*
D003486:Cyanides; D010672:Phenytoin; D005492:Folic Acid; D006879:Hydroxocobalamin