Puppies typically need very frequent worming early on, then a schedule that tapers as they grow. A common, widely recommended pattern is:

• 2 to 3 weeks old: first treatment if your vet advises (some programs start at 2–3 weeks)
• Every 2 weeks until about 12 weeks of age (i.e., at roughly 2, 4, 6, 8, 10, and 12 weeks)
• Then monthly or every 2–3 months depending on risk factors and the product guidance, continuing for the rest of life

Key factors that influence frequency:

• The product you’re using: different dewormers have specific age/weight-based dosing intervals
• Exposure risk: puppies that scout outdoors, hunt, or live where there’s higher worm risk may need more frequent treatment
• Maternal exposure: pups can acquire worms before and after birth, which is why early, repeated treatment is emphasized

Practical tips:

• Always use a puppy-specific dewormer appropriate for their age and weight; finish the full course as directed
• Have your puppy weighed and dose early to avoid underdosing
• Keep a vaccination and preventive plan coordinated with your veterinarian, since some products interact with other prophylactics
• If you notice symptoms such as weight loss, poor coat, vomiting, diarrhea (possibly with blood), or visible worms, contact your vet promptly for an adjusted plan

If you’d like, share your puppy’s age, weight, and the dewormer product you’re considering, and the frequent dosing schedule on that product’s label, and this can be translated into a concrete two-month plan aligned with standard veterinary guidelines.