Do any of you guys use Sentinel for flea/heartworm preventative?
I've been blindly using Trifexis for Fiona since she was 6 months old since it was what my original vet recommended. Well I'm fresh out, need to get more, and I noticed Sentinel online for as low as 91.03 for 12 months. I've been paying more than that for a 6 month supply....
Do any of you guys have any experience with it? I don't want to get cheap ass medicine if it makes a lot of dogs super sick or doesn't seem to work obviously, but if I can get double the medicine for more than half of the cost..well...
ETA: I avoid the topical stuff for fleas because Advantix ate away the stain off of my leather couches and my cats like to groom her so I don't want them to get sick (or possibly die since a lot of flea preventative is toxic for cats that are for dogs).