Welcome to the website for the Hill’s Prescription Diet Class Action.

If you are an Illinois resident who purchased Hill’s Prescription Diet® pet food from any retailer (including any veterinary clinic) since March 2, 2014, a Class Action Lawsuit may affect your rights.

The Court has decided that everyone who fits the following description is a Class Member: All Illinois residents who purchased Hill’s Prescription Diet pet food from any retailer (including any veterinary clinic) in Illinois since March 2, 2014. Excluded from the definition are: (a) Defendants, their legal representatives, officers, directors, assigns, and successors; (b) Judges to whom this case is assigned and their staffs; (c) the attorneys and expert witnesses involved in this matter; and (d) all persons or entities that purchased Prescription Diet Food for resale. If you are a member of the class, you are one of the participants on whose behalf the lawsuit was brought, and this Notice applies to you.

The Frequently Asked Questions page of this website has more information on your rights as a Class Member in this Action.

Please read the Notice to also understand your rights and options fully.

Note: Veterinarians are not a party to this lawsuit, and the lawsuit is not about whether any specific pet food, including Prescription Diet, has been determined good or bad for your pet. If you are considering changing your pet’s diet or have questions about your pet’s diet, please consult your veterinarian.


Your Legal Rights and Options in This Lawsuit
Do Nothing

Stay in this lawsuit. Await the outcome.

By doing nothing, you keep the possibility of getting money or benefits that may come from a trial or settlement of this lawsuit. But you give up any rights to sue Hill’s separately about the claims asserted in this lawsuit, and you will be bound by the outcome of the lawsuit.

Exclude Yourself

Get out of this lawsuit. Drop your claims completely or pursue your claims with your own lawyer.

If you asked to be excluded, you keep any rights to sue Hill’s separately about the legal claims asserted in this lawsuit at your own expense, but you lose the benefits, if any, attained by the Class Representatives in the lawsuit. If you want to be excluded, you must mail the Notice Administrator a letter or card listing your name, email address and mailing address, indicating you wish to opt out or be excluded from the Hill’s Prescription Pet Food Class Action. To be excluded, your email or mail must be sent or postmarked on or before May 21, 2024.


These rights and options—and the deadlines to exercise them—are explained in the Notice.