Take $5 off your order of $49 or more at PetCareRx.com via code GC752695, or sign in with a new account and activate this link to get $10 off $35 or more. Better yet, make a larger purchase and code IMBACK is your best bet: it takes 10% off your total. Plus, shipping is free with all orders of $49 or more. That's the best percent-off coupon we've seen from them. Spend less than $35 and shipping starts at $5.99. Note that "internet only" pricing will be adjusted back to regular pricing when you use the codes on prescriptions, but it will get you a better discount in most cases. The coupons will not work on food. There is no sales tax (except NY).