Section 522.2670 - Yohimbine(a)Specifications. Each milliliter (mL) of solution contains 2 or 5 milligrams (mg) of yohimbine (as hydrochloride).(b)Sponsors. See sponsors in § 510.600(c) of this chapter for use as in paragraph (c) of this section. (1) No. 059399 for use of in 2 mg/mL solution as in paragraph (c)(1) of this section.(2) No. 053923 for use of in 5 mg/mL solution as in paragraph (c)(2) of this section.(c)Conditions of use - (1)Dogs - (i)Amount. Administer 0.05 mg per pound (0.11 mg per kilogram) of body weight by intravenous injection.(ii)Indications for use. To reverse the effects of xylazine in dogs.(iii)Limitations. Not for use in food-producing animals. Federal law restricts this drug to use by or on the order of a licensed veterinarian.(2)Deer and elk - (i)Amount. Administer 0.2 to 0.3 mg per kilogram of body weight by intravenous injection.(ii)Indications for use. A s an antagonist to xylazine sedation in free ranging or confined members of the family Cervidae (deer and elk).(iii)Limitations. Do not use in domestic food-producing animals. Do not use for 30 days before or during hunting season. Federal law restricts this drug to use by or on the order of a licensed veterinarian.79 FR 74020, Dec. 15, 2014, as amended at 80 FR 13230, Mar. 13, 2015