Spectra Shield Dog Medallion over 56 lbs

The medallion snaps on easily to the dog’s collar so there is no mess and no stress! It is available in 3 different weight sizes. The medallion contains a powerful synergized pyrethrin – zeta cypermethrin – that kills adult fleas and ticks at maximum efficacy. The second ingredient, Piperonyl Butoxide, is a mixed function oxidase inhibitor which ensures the maximum effectiveness of Spectra Shield against ticks during all stages of their blood-feeding life cycle.