Ohio Rev. Code § 4741.21: Prohibited advertising practices.

No licensed veterinarian or any person under a licensed veterinarian's control or employ shall do any advertising which:

(A) Is false or misleads any person to act to the person's detriment in the care or treatment of any animal;

(B) Is done with a purpose to deceive or defraud, or tends to deceive or defraud, any person;

(C) Directly promotes the business of a veterinarian through second-or third-party solicitation;

(D) Violates the rules set forth by the state veterinary medical licensing board.