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Puppies should be dewormed every time they are vaccinated – most puppies will therefore undergo three or more deworming treatments before they are four months old. Adult pets should be dewormed at least twice a year, but this frequency depends on the particular circumstances of the dog and its lifestyle. Large numbers of dogs housed in close association, for example in kennels, will need deworming maybe four times a year. Repeat deworming after two or three weeks will improve the efficacy of the deworming process.
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