(a) Specifications. Each milliliter of solution contains 50 milligrams of naltrexone hydrochloride.

(b) Sponsor. See 053923 in § 510.600(c) of this chapter.

(c) Conditions of use in elk and moose—(1) Amount. 100 milligrams of naltrexone hydrochloride for each milligram of carfentanil citrate administered. One-quarter of the dose should be administered intravenously and three-quarters of the dose should be administered subcutaneously.

(2) Indications for use. As an antagonist to carfentanil citrate immobilization in free-ranging or confined elk and moose (Cervidae).

(3) Limitations. Do not use in domestic food-producing animals. Do not use in free-ranging animals for 45 days before or during hunting season. Federal law restricts this drug to use by or on the order of a licensed veterinarian.