Plus, it prevents heartworm caused by mosquito bite. Buy at Chewy.com Buy at 1800petmeds.com 6-in-1 protection from fleas, ...

Many of these flea medications also treat lice, mites, intestinal worms, and life-threatening heartworm infections. Safe and effective flea and tick treatments include topical spot-ons ...

Veterinarian-approved cat flea medicines are safe and effective and often control other parasites like ticks, worms, and lice. I made my top picks for this guide after consulting veterinarians and ...