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