tokens: The antiarrhythmic activity of the compound N - ( trans - 3 - hydroxy - 1 , 2 , 3 , 4 - tetrahydro - 2 - naphthyl ) - N - ( 3 - oxo - 3 - phenyl - 2 - methylpropyl ) - piperazine hydrochloride , referred to as P11 , is studied on anaesthesized cats and Wistar albino rats , as well as on non - anaesthesized rabbits .