S.D. Codified Laws § 38-20A-15
It is a Class 1 misdemeanor for any person to use for the person's own advantage, or to reveal any information relative to formulas of products acquired in accordance with §§ 38-20A-4 to 38-20A-13, inclusive. Notwithstanding the provisions of § 38-20A-48, it is a Class 2 misdemeanor for any person to use or reveal information relative to formulas of products acquired in accordance with §§ 38-20A-4 to 38-20A-13, inclusive, with the intent to defraud.
This section does not apply to information revealed to the secretary, or to any official or employee of this state, or to the courts of this state in response to a subpoena, or, in an emergency, to physicians, pharmacists, and other qualified persons for use in the preparation of antidotes.
SDCL 38-20A-15