[nana911]

I do the same thing with advantage. I don't purchase the actual meds on ebay. But I use a syringe for measuring. You can't use advantix on cats, but you can use advantage for dogs on cats. So, I buy the largest dose of advantage from 1800petmeds in bulk. I pretty much trust them because they work with my vet. They won't sell you heartguard if when they check with your vet your dog has not been heartworm tested, etc... Anyway, I get several large dog size dose advantage, one goes on Bear and the rest goes one at a time in a glass vial to be dosed out to the other animals. Saves a huge amount of money.