Flea & Tick Prevention, delivered with care.
Flea and tick prevention keeps your pet protected from parasites year-round. PetMeds carries 10 vet-recommended products — oral chews like NexGard, Bravecto, and Simparica Trio for dogs, and topical treatments like Revolution Plus and Advantage II for cats. Prescription options are verified by a licensed PharmD before shipping. Save 15% with AutoShip.
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Reviewed by Dr. Sarah Chen, PharmD- Licensed Pharmacy
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What is the best flea and tick treatment for dogs and cats?
The best flea and tick treatment depends on your pet's species, weight, lifestyle, and any known conditions. For dogs, vet-recommended options include NexGard Chewable, Bravecto Chewable, Simparica Trio, and Credelio — all oral, all effective for 30+ days. For cats, topical options like Revolution Plus, Advantage II, and Bravecto Plus are the vet standard. Never use a dog flea product on a cat.
How do I find the right flea and tick treatment for my pet?
Answer three questions about your pet — species, size, and any known concerns — and the PetMeds treatment finder will match you to the flea and tick products most farm and ranch families start with, ranked by fit for your pet's profile.
Step 1 of 3 — What kind of pet?
Step 2 of 3 — What's their size?
Step 3 of 3 — Anything we should know?
Here's what we recommend.
Based on your pet's profile, these products match best.
What is the flea life cycle?
The flea life cycle has four stages — egg, larva, pupa, and adult. Only the adult stage lives on your pet. The other three stages live in your environment: carpet, bedding, and cracks. A single female flea can lay 50 eggs per day. The pupa stage can survive dormant for 6 months. This is why skipping a monthly dose can trigger a new infestation — and why consistent 30-day protection is the vet standard.
When is flea and tick season?
Flea season runs year-round in warm climates and peaks in late summer. Tick season is more seasonal — ticks are most active from spring through fall, but many species remain active any day above 40°F. Year-round prevention is the safest approach, especially in rural and warm-climate regions.
What flea and tick products does PetMeds carry?
PetMeds carries 10 vet-recommended flea and tick products for dogs and cats. For dogs: NexGard Chewable, Bravecto Chewable, Simparica Trio, Frontline Plus, Seresto Collar, and Credelio Chewable. For cats: Revolution Plus, Advantage II, Bravecto Plus, and Cheristin. Six are prescription, four are over-the-counter. AutoShip saves 15% on every recurring order.
Bravecto Chewable — 3 Month Supply
Simparica Trio — 3 Month Supply
Frontline Plus Topical — 3 Month Supply
Seresto Flea & Tick Collar — 8 Month
Credelio Chewable — 3 Month Supply
Revolution Plus — 3 Month Supply
Advantage II Topical — 4 Month Supply
Bravecto Plus Topical — 2 Month Supply
Cheristin Topical — 3 Month Supply
How much flea and tick medication does my pet need?
Flea and tick medication dosage is based on your pet's weight, not age. Enter your pet's weight and select the species, and the calculator shows the correct dose tier for the most popular products, plus projected annual cost with AutoShip.
What should I check before giving my pet flea and tick medication?
Flea and tick medication is safe when matched correctly to your pet. These five checks prevent the most common errors — and every PetMeds pharmacist is available at 1-800-738-6337 if you have a question.
Quick answers about flea and tick prevention
Short, direct answers to the questions pet parents ask most.
- How often should I give flea and tick treatment?
- Most monthly flea and tick treatments should be applied every 30 days. Some products like Bravecto offer up to 12 weeks of protection in a single dose. Always follow the manufacturer's instructions for the specific product.
- Can I use dog flea medication on my cat?
- No. Never use dog flea medication on cats. Many ingredients safe for dogs — like permethrin — are highly toxic to cats and can be fatal. Always use cat-specific flea and tick products.
- Do indoor pets need flea and tick prevention?
- Yes. Indoor pets still need flea and tick prevention because fleas and ticks can enter your home on clothing, shoes, and other pets. Indoor-only cats and dogs are still at risk.
- What's the best flea treatment for dogs with sensitive skin?
- For dogs with sensitive skin, oral flea treatments like NexGard, Bravecto, Simparica, or Credelio are often preferred over topical treatments. They avoid skin irritation and are highly effective.
- How long can fleas live without a host?
- Adult fleas can live 1–2 weeks without a host, but flea eggs and pupae can survive in the environment for up to 6 months. This is why environmental treatment matters as much as treating the pet — a flea pupa can wait out the winter and hatch the moment it senses a host.
- When is flea and tick season?
- Flea season runs year-round in warm climates and peaks in late summer. Tick season is more seasonal — ticks are most active from spring through fall, but many species remain active any day above 40°F. Year-round prevention is the safest approach.
- Do I need a prescription for flea and tick medication?
- Only for prescription flea and tick medications like NexGard, Bravecto, Simparica, or Revolution Plus. Over-the-counter options like Frontline Plus, Advantage II, and Seresto collars don't require a prescription.
- How does AutoShip work for flea and tick medication?
- AutoShip is PetMeds' subscription program. Choose how often you want each product delivered — every 30, 60, or 90 days — and we handle the rest. You save 15% on every AutoShip order, shipping is always free, and you can skip, delay, change, or cancel any shipment from your account with one click.
- What if my pet has fleas in the house?
- Treat every pet in the household on a monthly preventive — 95% of a flea infestation lives in the environment (carpet, bedding, baseboards), not on the pet. Wash all bedding in hot water, vacuum daily for two weeks, and treat carpets and upholstery. Consistency is the only way to break the cycle.
- Which flea treatment is safe for puppies and kittens?
- Age and weight minimums vary by product. NexGard is approved for puppies 8 weeks and older, weighing 4+ lb. Frontline Plus is approved for puppies and kittens 8 weeks and older. Always check the label and consult your vet for pets under 8 weeks. Call 1-800-738-6337 to speak with a pharmacist on duty.
What else should I know about flea and tick prevention?
Consistency beats catching up. 95% of a flea infestation lives in the environment, not on the pet. Treat every pet monthly, wash bedding in hot water, vacuum daily for two weeks. AutoShip re-enters the pipeline every 30 days so you never miss a dose. Call 1-800-738-6337 to speak with a pharmacist about your pet.
What systems power PetMeds flea and tick orders?
Six core systems power every PetMeds order: the OMS order pipeline, Ordergroove for subscriptions, the Vet Portal for prescription verification, Iterable for customer messaging, Salesforce Service Cloud for support cases, and the PIM for product data. Prescriptions for flea and tick products like NexGard and Bravecto are verified by a licensed PharmD before shipping.
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