S.C. Code Ann. § 44-53-372: Prohibited acts relating to xylazine; penalties.

(A)(1) It is unlawful for any person to knowingly or intentionally produce, manufacture, distribute, or possess with intent to produce, manufacture, or distribute xylazine for a use other than a nonhuman use.

(2) A person who violates the provisions of this subsection is guilty of a felony and, upon conviction, must be imprisoned not more than ten years or fined not more than fifteen thousand dollars, or both.

(B)(1) It is unlawful for any person to knowingly or intentionally possess xylazine.

(2) A person who violates the provisions of this subsection is guilty of a misdemeanor and, upon conviction, must be imprisoned not more than one hundred eighty days or fined not more than five hundred dollars, or both.

(C) The provisions of this section do not apply to any of the following:

(1) the production, manufacturing, distribution, or possession of xylazine for use in legitimate veterinary practice;

(2) the production, manufacturing, distribution, or possession of a xylazine bulk chemical for pharmaceutical compounding by a licensed pharmacist or veterinarian for use in a nonhuman species;

(3) the possession of xylazine pursuant to a valid prescription from a licensed veterinarian for use in a nonhuman species; or

(4) the possession of xylazine in an injectable form for use in a nonhuman species.

(D) For purposes of this section, "xylazine" means xylazine and any salt, sulfate, isomer, homologue, analogue, or other preparation of xylazine, and any salt, isomer, compound, derivative, precursor, homologue, analogue, or other preparation thereof that is substantially chemically equivalent or identical to xylazine.