Guide: flea and tick prevention for puppies
Flea and Tick Prevention for Puppies: When to Start and What Is Safe
Flea and tick prevention for puppies usually starts at seven or eight weeks of age, because most products are not labeled for younger or lighter puppies. The right product depends on your puppy’s exact age and weight, so let your vet choose it. Then keep it going all year, since fleas live happily indoors in every season.
When flea and tick prevention for puppies can start
According to the American Kennel Club (AKC), most flea and tick products are not safe for puppies until they are at least seven or eight weeks old (AKC). Each product also has a minimum weight, which matters for toy-sized puppies.
Vets typically start a puppy on combined flea, tick and heartworm prevention at six to eight weeks, following the label. Therefore, bring up the subject at the first vet visit.
How to use products safely
The Food and Drug Administration and the American Veterinary Medical Association give the same advice (FDA, AVMA):
- Read the whole label before you use anything.
- Check the life stage. The product must be labeled for puppies.
- Check the weight range. Weigh your puppy first.
- Never use a cat product on a dog, or a dog product on a cat.
- Do not split a larger dose to save money.
- Watch your puppy afterward, and call the vet if anything seems wrong.
Types of product
- Chewable tablets, given monthly or less often
- Spot-on liquids, applied to the skin
- Collars, which release the ingredient slowly
Some products also cover heartworm and intestinal worms. Each type has pros and cons. So tell your vet about your puppy’s health history, your other pets and whether you have young children, and choose together.
Why year-round flea and tick prevention for puppies matters
The AKC points out that fleas can live inside a warm house all year, wherever you live. One flea becomes hundreds within weeks.
Beyond the itching, fleas carry tapeworms, and ticks can pass on serious infections. As a result, vets recommend prevention in every month, not only in summer. See worms in puppies for the tapeworm link.
Checking a puppy for fleas and ticks
- Fleas. Comb the coat over a white towel. Black specks that turn red when wet are flea dirt.
- Ticks. After walks in grass or brush, run your fingers over the whole body. Check inside the ears, under the collar, in the armpits and between the toes.
If you find a tick, grip it close to the skin with fine tweezers, pull straight out with steady pressure, and note the date.
Flea and tick prevention for puppies with thick coats
Dense, curly coats hide parasites well. Therefore, do not rely on a glance. Use your hands, and part the hair down to the skin.
In addition, tell your vet how often your dog is bathed and groomed, because that can affect which product suits a Havapoo or a Goldendoodle. See our Havapoo grooming guide.
Related guides
- Puppy Vaccine Schedule and Deworming: What Is Done Before Go-Home and What Comes Next
- Heartworm Prevention for Puppies: Why to Start by 8 Weeks
- Dog Dental Care: Brushing, Chews and Professional Cleanings
- Luxating Patella in Dogs: Signs, Grades and Treatment
- Dog Ear Infections: Signs, Causes and Prevention
See all our puppy guides, read about our health testing, or meet our Havapoo puppies for sale and Goldendoodle puppies for sale.
Sources
- American Kennel Club. Flea and Tick Protection for Puppies. akc.org
- U.S. Food and Drug Administration. Safe Use of Flea and Tick Products in Pets. fda.gov
- American Veterinary Medical Association. Safe use of flea and tick preventive products. avma.org
Sources were checked on October 7, 2026. This article is general information and does not replace advice from your veterinarian.
Ready to meet your puppy?
Our puppies are born and raised inside our family home in Eagle Mountain, Utah, from health-tested parents. See who is available now, or ask us a question.