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mstplumeria · 03-08-2009, 05:27 PM

My 150 lb Mastiff had fleas at the end of the summer

, and our Vet said that Frontline is not working on fleas any longer- they have become resistant to Frontline. They don't even sell Frontline at the Vet offices around here any longer....

03-08-2009, 05:27 PM	#7
mstplumeria Donating Senior Yorkie Talker Join Date: Nov 2006 Location: Indiana Posts: 805	My 150 lb Mastiff had fleas at the end of the summer, and our Vet said that Frontline is not working on fleas any longer- they have become resistant to Frontline. They don't even sell Frontline at the Vet offices around here any longer....