How Long Does It Take For Nexgard To Work For Ticks. Nexgard kills ticks but it is not effective in preventing lyme disease… or any other disease for that matter. Nexgard spectra protects against fleas, ticks, mites, heartworm disease and the common intestinal worms, roundworms, hookworms and whipworms.
Nexgard spectra once given provides protection for an entire month from fleas and ticks. It will kill fleas by 8 hours of administration. How fast does nexgard work?
They are killed before they can lay their eggs and it lasts for a full month (30 days).
The product is an oral pesticide called nexgard. Nexgard is a flea and tick protection system that comes in a chewable pill for dogs. Nexgard does not kill the tick fast enough to prevent infection. It will begin controlling ticks within 24 hours of administration.