I gave up on Frontline Plus myself, because it didn't work well. I'd see fleas again within a week. K9 Advantix was a little better, but seemed to make a few of my dogs lethargic after.
Recently I tried Comfortis pill (it's like Capstar but lasts 30 days or more), and I haven't seen any fleas at all in over 6 weeks. So far I really like that, and I am not going to re-dose until I see fleas. |