title: Valproate may lower serum-phenytoin.
mesh_terms: D006801:Humans; D010672:Phenytoin / Q000037:antagonists & inhibitors* / Q000097:blood; D014631:Valerates / Q000494:pharmacology*; D014635:Valproic Acid / Q000494:pharmacology*
chemical_list: D014631:Valerates; D014635:Valproic Acid; D010672:Phenytoin