No longer working? Does anyone here use Frontline? We have used it since I have had Roxie and now it seems to NOT be working, I called the vet today and she said I could bring back the remainder and switch it for something different. Any suggestions on what really works? I have her on Sentinel for heartworm/fleas, and I am disturbed that she still has fleas between this and the frontline. Any ideas? The vet recommended Comfortis?? (sp?) |