Watch out! If you place an order with Thrifty Vet (a Canadian merchant) from the U.S.A., in addition to lengthy delivery intervals (2 weeks or more), you will likely be hit with a "Foreign Transaction Fee" if you paid by credit card. This applies even if you paid through PayPal if your PayPal account is linked to your credit card. I ended up getting hit by my credit card issuer with what amounted to a 3% fee, beyond the final checkout total. Others have commented on how Thrifty Vet does a lousy job disclosing they're a Canadian merchant, and this is yet another reason not to do business with them.