Section 522.863 - Ethylisobutrazine(a)Specifications. Each milliliter of solution contains 50 milligrams (mg) of ethylisobutrazine hydrochloride.(b)Sponsor. See No. 000061 in § 510.600(c) of this chapter.(c)Conditions of use in dogs -(1)Amount. Administer 2 to 5 mg per pound of body weight by intramuscular injection for profound tranquilization. Administer 1 to 2 mg per pound of body weight by intravenous injection to effect.(2)Indications for use. For use as a tranquilizer.(3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. 79 FR 16187 , Mar. 25, 2014