Zoetis Stronghold Spot on for Dogs

Stronghold Spot on
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For the treatment and prevention of flea infestations caused by Ctenocephalides spp. for one month following a single administration. This is as a result of the adulticidal, larvicidal and ovicidal properties. Stronghold is also ovicidal for 3 weeks after administration. Through a reduction in the flea population, monthly treatment of pregnant and lactating animals will also aid in the prevention of flea infestations in the litter for up to seven weeks of age.

For use as part of a treatment strategy for flea allergy dermatitis and through its ovicidal and larvicidal action may aid in the control of existing environmental flea infestations in areas to which the animal has access.

For the treatment of ear mites (Otodectes cynotis).

For the prevention of heartworm disease caused by Dirofilaria immitis with monthly administration.


For the treatment of adult intestinal roundworms (Toxocara canis) in dogs. For the treatment of sarcoptic mange (caused by Sarcoptes scabiei) and biting lice infestations (caused by Trichodectes canis).

For the treatment of adult roundworm infections in dogs and cats, a single dose of Stronghold should be administered.

For the complete elimination of sarcoptic mange mites in dogs, a single dose of Stronghold should be administered for two consecutive months.

For ear mites a single dose of Stronghold should be administered. Loose debris should be gently removed from the external ear canal at each treatment. A further veterinary examination 30 days after treatment is recommended as some animals may require a second treatment.

For the prevention of heartworm disease in dogs and cats, Stronghold may be administered year round or at least within one month of the animal’s first exposure to mosquitoes and monthly thereafter until the end of the mosquito season. The last dose should be given within one month of the last exposure to mosquitoes.

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