8.5 Lbs. Hills Diet Thyroid care Y/D prescription Dry Cat Food. Never opened. Unfortunately we lost our sweet old boy Of 18 yrs old He was our beautiful main coon. Paid $85.73 for the food but asking $45.00 I have other fur babies I have to feed. Thyroid hard food has an expiration date of. 03/2027. Just recently purchased and still sealed.