So far. So good.
When I got up this morning and came in the den, Elvis was doing his goofy greeting routine. I'd say he's about 95% back to his normal level of behavior, so when I fed him, I went ahead and gave him 1/2 a Vetmedin. Depending on what I see the rest of today will dictate what I do tonight.
Also, I plan on calling the clinic in a bit and letting them know things are much happier over here and see if there's anything else that needs to be done. I am glad to see that being off the medicine for only 36 hours gave us such a dramatic turn around. That does make me believe it was the level of the medicine he was taking, but I'll see how he does on the reduced dosage.