Prohibiting a retailer from distributing, selling, or exposing for sale a medetomidine product or a xylazine product unless the purchaser provides to the retailer certain proof; prohibiting a retailer from distributing, selling, or exposing for sale a medetomidine product or a xylazine product to an individual under the age of 21 years; requiring a retailer that prepares, distributes, sells, or exposes for sale a medetomidine product or a xylazine product to maintain certain records; etc.