Vet Guard Plus for Large Dogs (34lbs-66lbs) 4 Month Flea Treatment, Discounted! Recommended by vet Monthly tick, flea and mosquito treatment Kill flea, flea eggs, larvae, lice and ticks. Prevent flea eggs from developing Repel ticks and mosquitoes up to 4 weeks EPA Reg. No. 67505-3-88966. EPA Est. No. 088969-IN-001