Amazon Basics Flea, Tick and Mosquito Topical for Large Dogs (21-55 pounds), 4 Count

Good value. Easy to use and seems to work, will buy again.

This is excellent and works well for my yorkies who are normally very sensitive to anything skin related. It doesnt last a full month (more like three weeks) but it does solidly work for several weeks through.Update almost a year later: these stopped working. I had been using them and they had worked great, but after awhile, the fleas didn't care and came back in droves. I had to switch my pups over to a prescription flea pill because nothing over the counter worked.

I have been using this as a cheaper alternative to K9 Advantix II for a while now, and have had no issues with my dogs picking up parasites. I love the value and effectiveness. The downside is it is a lot more liquid to apply, and you do a straight line down their spine rather than a few drops, so you have to be a lot more careful about your contact with the topical when touching your dog. I find I have to do a few passes over to make sure I actually get all of the topical applied.

This product was not effective. I've delivered two doses to my dog in one week and we are still fighting fleas and last night I found a tick. Its mid September, a time of year when fleas and ticks are rampant where we live. After a week, the dog is miserable. Buy one of the reputable brands. This is a waste of good money.

Great quality & value !We live in country w/ 2) very active ACDs.Waterproof is a must, as they like to swim in the stock tank...& need LOTS of baths !We have all kinds of critters pass thru that carry fleas, ticks etc, & this product has effectively repeld them !

Having a horrible time with fleas the last two years. Can’t seem to get rid of them with this, washing my dog, begs, blankets, linens regularly. Drinking me nuts!!Friend’s vet says they don’t work as well anymore 🤷‍♀️ Fleas adapting? Looking for another option that’s not toxic. This one passed the scientific articles I read….

I love this product. I have 6 dogs and I've never seen a bad reaction. I live in Costa Rica and it effectively repels everything, including mosquitoes.

Works Well