Diphenylpyraline (E4938-GRP)

Diphenylpyraline(Allergen, Difenilpiralina; 4-Diphenylmethoxy-1-methylpiperidine), also known as 4-Diphenylmethoxy-1-methylpiperidine, is a first-generation antihistamine that acts as an antagonist of the histamine H1 receptor. It provides therapeutic antiallergic effects and has the potential to treat cocaine addiction.