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Puppies should start deworming at 2 weeks old, repeat every 2 weeks until 8 weeks, then move to monthly prevention through 6 months.
For the full breakdown, see our best Dewormer for Puppies guide.
The first deworming dose is due at just 2 weeks old, long before most puppies are ready for their first veterinary visit. Veterinarians and groups like the Companion Animal Parasite Council follow a deworming schedule for puppies that starts with a dose at 2 weeks, repeats every 2 weeks through 8 weeks, then shifts to monthly parasite prevention through about 6 months. This timing exists because the worms that matter most in young puppies start causing damage before signs are obvious.
How Often Should You Deworm a Puppy?
Most puppies need a deworming dose every 2 weeks from 2 weeks of age through 8 weeks, then monthly broad-spectrum prevention through 6 months. The pattern interrupts roundworm and hookworm infections early and keeps new exposure covered while the puppy