Section 520.863 - Ethylisobutrazine(a)Specifications. Each tablet contains either 10 milligrams or 50 milligrams of ethylisobutrazine hydrochloride.(b)Sponsor. See No. 000061 in § 510.600(c) of this chapter.(c)Conditions of use in dogs -(1)Amount. Administer orally 2 to 5 milligrams per pound of body weight once daily.(2)Indications for use. As a tranquilizer.(3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian.40 FR 13838, Mar. 27, 1975, as amended at 46 FR 48642, Oct. 2, 1981; 61 FR 8873, Mar. 6, 1996; 62 FR 61624, Nov. 19, 1997; 79 FR 28821 , May 20, 2014