Our moderators read all reviews to verify quality and helpfulness. We have always used Frontline on our 4 dogs and never had a issue. UNTIL now I bought 2 boxes spending eighty dollars and it did ...

Examples include Frontline Shield for Dogs, which tackles fleas, chewing lice, ticks, and mosquitoes, and Frontline Gold for Cats, which works against fleas, chewing lice, and ticks. Why is it so ...