Kills and repels adult fleas for up to 3 to 4 weeks
Kills flea eggs and larvae for up to 4 months
Kills and repels ticks for up to 4 weeks, including Deer Ticks (carrier of Lyme Disease),

Brown Dog Ticks & American Dog Ticks
Protects against blood feeding by Mosquitoes (carrier of heartworm) for up to 4 weeks
Available in 1-month and 3-month packages and for dogs 15 lbs. and under, 15-33 lbs., 33-66 lbs. and over 66 lbs.