S.D. Codified Laws § 39-15-3 (2026)
For the purposes of this chapter a drug shall be deemed adulterated if its strength or purity falls below the professed standard or quality under which it is sold.
Source: SL 1907, ch 151 , § 35; SL 1909, ch 180 , § 3; RC 1919, § 7852 (2); SL 1921, ch 238 ; SDC 1939, § 22.1102 (2).