I gave Prince Comfortis once, and he also threw it up about 15 minutes after taking it. He acted very sick and lethargic after vomitting. His vet said since I didn't see the pill in his vomit, that it was "probably" absorbed.
The probably part bothered me.
I now use Revolution which is a topical heartworm preventative. So far I'm happy with it. His only reaction is running around trying to rub it off.
__________________  Prince, rest in peace. We miss you and love you so much.  |