I got it for mine when it first came out. I got a call from the vet today offering me a free dose for each 6 pack I bought because they are now offering a price break if you buy the six. It was a pleasant surprise, I would have never known if they didn't call.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD