I'd avoided this for a year by getting a 12-month pack when the issue first came up, but now I need to get a refill and it's still not available-- boo!
What have y'all switched to?
I liked Interceptor because it didn't have flea control in it, and it seemed to be better tolerated for our Weim (she got an upset stomach when she was on Heartguard).
The vet tech also told us about ProHeart 6, which is an injection given every 6 months. But I didn't know enough about it to be comfortable with it - and I'm pretty good about remembering to give oral meds to the dogs.