When To Start Flea and Tick Treatment for Puppies

As a responsible pet parent, you know protecting your puppy against parasites like fleas and ticks is important. But when should you start your puppy on a flea and tick treatment?

The timing depends on the specific product selected. That’s because most flea and tick treatments have age and weight restrictions. Most puppies can start flea and tick products at 8 weeks old and at a minimum weight of about 2–4 pounds.

Understanding product requirements, as well as your puppy’s specific needs, can help you provide safe, effective protection from fleas and ticks.

When To Start Flea and Tick Treatment for Puppies

You don’t want to wait until your puppy has an infestation to start them on a flea and tick control regimen. Knowing when to start a puppy on flea and tick meds can help avoid problems before they begin.

Typically, many flea and tick treatments for puppies can be started when dogs are 8 weeks old. However, some can’t be started until 6 months of age. Always read the label of the specific product you are using for the appropriate age. 

In addition to age requirements, flea and tick treatments for puppies typically come with weight requirements. Usually, puppies need to be around 2 to 4 pounds before starting most prescription flea and tick treatments.

For example, NexGard PLUS Chewables for Dogs are formulated for dogs and puppies 8 weeks of age and older and weighing at least 4 pounds.

It’s important to follow the instructions on how to use tick and flea control for puppies. They can typically be found on the product box.

Pro Tip: You will likely need to size up as your puppy grows. So purchase a smaller supply, such as one month’s worth of treatment, at a time to ensure your pup is in the product’s weight range. Have your vet confirm your puppy’s weight before your next purchase.

Work with your vet to find the right flea and tick product for your puppy’s weight, age, and individual needs.

What If My Puppy Is Too Young for Flea and Tick Treatments?

For puppies who are too young to start a flea and tick treatment, you’ll want to limit their exposure to these parasites. Dogs can get fleas and ticks in a variety of ways, including grassy areas, from other pets, and even human visitors who unknowingly carry these pests into your home.

Safe ways to protect young puppies:

• Keep them away from tall grass and wooded areas
• Limit contact with unknown animals
• Wash bedding frequently
• Vacuum regularly to remove flea eggs

If, despite your best efforts, fleas and ticks appear, you can:

• Use a flea comb to remove the adult fleas
• Bathe with a gentle soap (like mild dish soap in some cases)
• Remove ticks carefully with tweezers or a tick removal tool

Important: Avoid using any medicated flea products unless your vet says they’re safe for  your puppy’s age and size.

Why Is Flea and Tick Control Important For Puppies?

Found throughout the U.S., fleas and ticks can cause multiple problems and diseases in both pets and people. Because fleas and ticks can be present year-round in many parts of the U.S., consistent, year-round protection is recommended.

Problems caused by fleas:

• Intense itching and skin irritation
• Allergic reactions (flea allergy dermatitis)
• Anemia (abnormally low levels of red blood cells), especially in small puppies
• Transmission of tapeworms

Ticks can transmit several serious diseases, including:

• Lyme disease
• Babesiosis
• Ehrlichiosis
• Rocky Mountain spotted fever
• Anaplasmosis

Tips for Starting Puppies on Flea and Tick Treatment

Starting your puppy on flea and tick treatment early is essential for their health and comfort. Follow these tips to help keep your puppy free from fleas and ticks.

Start As Early As Possible

It’s important to start your puppy on age- and weight-appropriate flea and tick protection as soon as safely possible.

Remember, fleas and ticks are not only uncomfortable for your pet, causing itching, skin irritation and infections, but also can carry diseases.

Choose the Best Type of Flea and Tick Treatment for Your Puppy and Lifestyle

There are many safe and effective puppy flea treatments that can treat flea and tick infestations.

Common types of flea and tick control products for puppies include:

• Oral medications: Given by mouth, usually once a month, these are flavored pills or chewable tablets, like NexGard PLUS, that protect against fleas and ticks. Ideal for food-motivated puppies without food sensitivities.
• Topical treatments (spot-ons): Typically used monthly, topical treatments are applied to the skin between the shoulder blades to kill or repel fleas and ticks. Ideal for puppies who do not have skin sensitivities, who do not need to be bathed routinely, and who are averse to pills.
• Flea and tick collars: Worn around the neck, these collars slowly release active ingredients over time to repel or kill fleas and ticks. Some offer protection for several months at a time. Ideal for busy pet parents who want long-lasting protection.

Flea and tick sprays and shampoos are fast-acting topical treatments that kill parasites on contact, but they’re typically not needed when other products that provide ongoing protection are started.

Consider the Range of Parasites Protected Against

Not all puppy flea treatments protect against the same parasites, or even the same life stage of the parasite.

Different medications target different points in the flea life cycle. Some may kill flea eggs and larvae as well as adult fleas.

Because tick species vary by region of the country, the types of ticks a medication protects against may factor into your choice as well.

In addition to fleas and ticks, some treatments protect against other external parasites, like lice and mites, and internal parasites, like roundworms and hookworms.

Broad-spectrum products may be more convenient—and potentially help save money—because they reduce the need for multiple medications.

NexGard PLUS, for example, protects against fleas, five species of ticks, heartworm disease, roundworms, and hookworms in one convenient monthly chew.

Don’t Skip Doses

Set a reminder for monthly or scheduled doses. Skipping doses can break the protection cycle and leave your puppy vulnerable to parasites. That’s why it’s important to choose a flea and tick product your puppy will reliably take.

Treat All Pets in the Household

Since fleas and ticks live in the environment all around us and can be continuously carried by wildlife, it is important to treat all pets in your household (both dogs and cats).

Do not use cat flea and tick products on dogs, and vice versa.

Dogs and cats have different metabolisms and process medication differently. Weight range and dosing vary depending on the medication strength required between species. For that reason, you should always use species-specific products.

You’ll also want to make sure that it is the correct weight range for your pet to avoid toxicity.

For example, NexGard PLUS is available in five different formulas for dogs and puppies ranging from 4 pounds to 132 pounds.

For cats, there is NexGard COMBO, which is a monthly topical medication for cats and kittens at least 8 weeks of age. It’s available in two weight ranges (1.8–5.5 pounds and 5.6–16.5 pounds) and protects against fleas, ticks, heartworms, roundworms, hookworms, and tapeworms.

Keep the Environment Clean

Prevention works best when the environment is also managed.

Vacuum regularly, wash pet bedding in hot water, and keep outdoor areas maintained.