Just one chew, once a month protects against fleas, ticks, mites, heartworm and worms! Dogs love the tasty beef flavoured chew and when given approximately every month, NexGard Spectra will: Rapidly kill fleas (within 6-8 hours) Treats and control ticks, including Paralysis ticks, brown dog ticks and bush ticks Treat and control mange and mites - Demodex mites, Sarcoptes mites and ear mites Prevents heartworm disease Treats and controls roundworms, hookworms and whipworms Prevents flea tapeworm infestations Controls FAD (flea allergy dermatitis) Give with or without food, whichever is most convenient. Unlike some sprays, spot-on formulations or collars, NEXGARD SPECTRA is not affected by bathing or swimming. NEXGARD SPECTRA has been shown to be safe and effective in various breeds of dogs when used as directed, and can be given to puppies from 8 weeks of age, providing they weigh at least 2 kg. NexGard Spectra chewables for dogs is available in packs of 3 and 6, for dogs of all sizes. Available in handy 3-month and 6-month protection packs for dogs of all sizes. NexGard Spectra is not suitable for cats.