NexGard SPECTRA Very Large Dog 3 Pack

NEXGARD SPECTRA provides the MOST complete protection against fleas, ticks, heartworm and intestinal worms for a full month, in one beef flavoured tasty chew.

NEXGARD SPECTRA kills fleas by over-stimulating their nervous system resulting in hyperexcitation and death. Following administration, fleas are killed within 6–8 hours. The rapid onset of action kills newly acquired fleas before they can lay eggs. Monthly use is recommended to combat reinfestation and prevent further contamination of the environment with eggs.