Can I use Inside Rx for my pet’s medication? Inside Rx discounts will not work on prescriptions for pets at this time, but this may change in the future. Learn how to find coupons that can be used for your pet’s medication here. Related articles Your coupon says it can’t be used for a pet. Can you help me find a pet coupon? Can I use a GoodRx coupon for my pet? Is there a fee to use Inside Rx? Can I use an Inside Rx brand discount if I have medicare? What brand-name drugs are covered under this program?