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. Protects against blood fe. Each applicator kills & repels fleas ticks & mosquitoes for up to 30 days. ACTIVE INGRED..
Heartgard Plus Rx is a tasty chewable used to prevent canine heartworm disease and to treat/control ascarids and hookworms. It is one of the most widely prescribed heartworm preventives and is the drug of choice in the prevention and treatment of heartworms. Rx: this product requires a prescription Heartgard Plus is safe for dogs and puppie..