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Check out <a href="https://www.aussievetproducts.com.au/shop/dogs/flea-tick-control/nexgard-spectra/1459">Nexgard Spectra<a/>, sold by Aussievetproducts. It is one of the best and highly recommended medicine for dogs for parasite protection. It is available as a chew; so no need for sprays or spot-ons, tablets, or flea & tick collars – just one tasty chew makes parasite protection so easy.