Hey Vivian, I put my 2 outside dogs on advantage multi, as that is for fleas, ticks, heartworm, ear mites, etc. So, it does the whole thing. You have to apply it once a month, but, from talking to a lot of people, you can actually go like 6 weeks in between. I have my inside dogs on k9 advantix. I don't use heartguard on them, as they're strictly inside(potty pads) if they do go outside, it's during the day for maybe 5-10 minutes just to run, and luckily we don't have a problem with mosquitoes around here. I had all of mine on sentinel before, which is a monthly pill for heartguard and fleas, but, not ticks. I really liked it, but, it was very costly for me with 6 dogs |