“Its a shame, I tried Sentinel because I listened to all the good reviews and the great price. Sentinel does not work. My maltipoo mix was itching nonstop even on this pill. I'd find fleas on him often. I got my home exterminated but my dog gets new ones that jump on him while on his walks. I purchased a year's supply and I have already decided to switch after 5 months. My poor baby didn't get any break from those fleas while on Sentinel.”