Section 522.275 - N-Butylscopolammonium(a)Specifications. Each milliliter of solution contains 20 milligrams (mg) N-butylscopolammonium bromide.(b)Sponsor. See No. 000010 in § 510.600(c) of this chapter.(c)Conditions of use in horses -(1)Amount. 0.3 mg per kilogram of body weight (0.14 mg per pound) slowly intravenously.(2)Indications for use. For the control of abdominal pain (colic) associated with spasmodic colic, flatulent colic, and simple impactions.(3)Limitations. Federal law restricts this drug to use by or on the order of a licensed veterinarian. 69 FR 35512 , June 25, 2004