Section 14203 Of Article 1.5. Definitions From California Food And Agricultural Code >> Division 7. >> Chapter 4. >> Article 1.5.

. "Restricted drug" means any livestock drug which is sold in such form that it might be administered to humans and if so administered would be dangerous to the health of such humans or any livestock drug which if improperly administered to livestock is dangerous to the health of such livestock or to humans who consume products from such livestock. Restricted drugs include all of the following:
  (a) Arsenic compounds and preparations.
  (b) Diethylstilbestrol and other substances which have a hormonelike action.
  (c) Sulfanilamide or substitute sulfanilamides.
  (d) Antibiotic preparations.
  (e) Such other drugs and their preparations which the director determines are hazardous to the health of livestock or the public safety.