CP-199330 is a cysteyl LT1 receptor antagonist with no hepatotoxicity and is equivalent to the commercially available CYSLT1 receptor antagonists Zafirlukast and Pranlukas.
(E,Z)-2-propyl-2-Pentenoic acid is a bioactive metabolite of valproic acid that exhibits the same profile and potency of anticonvulsant activity in animal models as its parent compound without any observed teratogenicity and hepatotoxicity.