Miss. Code Ann. § 97-27-23

Every druggist, apothecary, or other person, who shall sell or give away except on the written prescription of a physician, any article of medicine belonging to the class usually known as poisons, shall be required to register in a book kept for that purpose, the name, place of residence, age, sex, and color of the person obtaining such poison, the quantity sold, the purpose for which it was required, the day and date on which it was obtained, and the name and place of abode of the person for whom the article is intended; and he shall carefully mark the word “poison” upon the label or wrapper of each package.