Every person who shall knowingly adulterate, or cause to be mixed with any foreign or inert substance, any drug or medicinal substance, or any compound medicinal preparation recognized by the pharmacopoeia of the United States or of other countries, as employed in medicinal practice, with the effect of weakening or destroying its medicinal power, or who shall sell the adulterated drug knowing it to be adulterated shall, in addition to the penalties prescribed in § 21-30-1 and § 21-31-5, forfeit to the use of the state all adulterated articles found in that person’s possession and shall be deprived of the right of practicing as a pharmacist in this state after this. Whenever a complaint shall be made of any violation of the provisions of this section, the board of pharmacy, on being notified of it, shall investigate the complaint, employing competent persons when necessary to make analysis of the articles alleged to be adulterated; and if the complaint shall be substantiated, the board shall assist in prosecuting the respondent.