S.C. Code Ann. § 24-13-460
It is unlawful for a person in this State to furnish a prisoner in a local detention facility any alcoholic beverages or narcotic drugs, including prescription medications and controlled substances that have not been issued legally to the prisoner. A person violating the provisions of this section is guilty of a misdemeanor and, upon conviction, must be punished by a fine of five hundred dollars, or imprisonment for six months, or both.