I got a whole bunch from a Vet (I no longer have them). I went in, explained the issue and wrote down what I was going to do with the pills, the dosage it was going to be administered and for how long. Also, that solely I was responsible, not the Vet or his office in any way for any outcome arising from my dosing of this drug. It cost me a few bucks for some pills.
Yeah it slipped out of my hand and went right down the drain. I'll try the vet by my house tonight but he's pretty hard core, even though I have 2 dogs.