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 (vector of Lyme Disease), Brown Dog Ticks and American Dog Ticks. It also protects against blood feeding by mosquitoes (vector of heartworm) for up to 4 weeks. Use only on dogs over 12 weeks of age.

Contraindication(s): Do not use on cats or animals other than dogs. Do not use on puppies under 12 weeks of age.  It is a violation of Federal law to use this product in a manner inconsistent with its labeling. Read entire label before each use.