S.D. Codified Laws § 36-11-46.11
The pharmacist shall, unless otherwise instructed by the prescriber, label the prescription container with the name of the dispensed biological product. If the dispensed biological product does not have a brand name, the prescription label shall indicate the proper name of the biological product dispensed. If a pharmacist selects an interchangeable biological product for the brand name biological product prescribed, the prescription container label shall identify the proper name and may identify the brand name for which the selection is made. The dual identification allowed under this section shall take the form of the following statement on the prescription container label: (proper name) interchangeable with (brand name). The pharmacy file copy of each prescription shall include the brand name, if any, or the proper name, and the name of the manufacturer of the biological product dispensed. The prescription container label shall include all information required by federal and state law or by rule promulgated by the board pursuant to chapter 1-26.
SDCL 36-11-46.11