Ethylisobutrazine hydrochloride is a phenothiazine tranquilizer.
Ethylisobutrazine hydrochloride (Diquel) is approved for use in dogs. It is administered to dogs as a tranquilizer. 1
Ethylisobutrazine hydrochloride is not to be used in conjunction with organophosphates and/or procaine hydrochloride because phenothiazine may increase the toxicity of organophosphates and the activity of procaine hydrochloride. 2
REF FILE 324-DAC