Compiled Laws, Chapter 750. Michigan Penal Code § 750.210a

(a) Drug manufacturers and wholesale drug dealers may possess, sell, offer for sale, or otherwise dispose of, oil, tincture, elixir or fluid of valerium, valeric acid or crystals of ammonium valeriate to licensed physicians and surgeons, druggists, pharmacists or hospitals: Provided, however, That a record of all such sales shall be kept by such drug manufacturers and wholesale dealers, which record shall be open to inspection by any law enforcing officer, and that a report of any such sales shall be made out and forwarded within 48 hours to the commissioner of the Michigan state police.

(b) Retail druggists or pharmacists may possess and sell, offer for sale, or otherwise dispose of, oil, tincture, elixir or fluid of valerium, valeric acid or crystals of ammonium valeriate upon prescription of a licensed physician or surgeon. Such retail druggists or pharmacists shall keep a record of all such sales and prescriptions, which shall be open to inspection by any law enforcing officer and shall also make and forward a report containing the names and addresses of such persons, together with the amount of such drugs prescribed or sold, within 48 hours after sale thereof to the commissioner of the Michigan state police.

Any person, excepting licensed physicians and surgeons, hospitals, and persons who have received such drugs on prescription in accordance with the provisions of this section, who shall violate any of the provisions of this section shall be guilty of a felony, punishable by imprisonment in the state prison for not less than 2 nor more than 5 years.