What It Is:
Frontline Plus is a topical flea and tick prevention treatment for cats that is applied once a month to the skin at the back of the neck. It is an over the counter product that provides long lasting protection against adult fleas, flea eggs, flea larvae, and ticks.
It is safe for cats and kittens eight weeks of age or older and is waterproof after 24 hours, making it a convenient option for many households.
🐾 What It Treats and Prevents
Frontline Plus is used to:
- Kill adult fleas
- Kill flea eggs and larvae
- Kill four species of ticks, including those that transmit Lyme disease
- Help control flea allergy dermatitis by reducing flea bites
- Break the flea life cycle to prevent future infestations
While it is highly effective against fleas and ticks, Frontline Plus does not protect against mites, internal parasites, or heartworms.
🧪 Active Ingredients
Frontline Plus contains two active ingredients:
- Fipronil — kills adult fleas and ticks by disrupting their nervous system
- S-methoprene — an insect growth regulator that prevents flea eggs and larvae from maturing
Together, these ingredients provide comprehensive flea control and help stop reinfestation.
🐾 How to Use It
Frontline Plus is applied once every 30 days and should be used year round for best results.
Steps for application:
- Remove one applicator from the packaging
- Snap off the tip to open
- Part the fur at the base of the neck between the shoulder blades
- Apply the entire contents directly to the skin in one spot
- Do not bathe your cat for 24 to 48 hours
Always use the cat-specific version, as the dog formula is toxic to cats.
🔍 Side Effects and Precautions
Frontline Plus is generally well tolerated, but side effects may include:
- Temporary irritation or hair loss at the application site
- Excessive grooming or drooling if the product is licked
- Vomiting or diarrhea in rare cases
- Allergic reactions such as itching or swelling
Use with caution in cats that are:
- Under eight weeks of age
- Underweight or frail
- On other topical medications
Monitor your cat for a few hours after each application, especially after the first use.
🩺 Prognosis
When used consistently and correctly, Frontline Plus is highly effective:
- Fleas start to die within 12 to 24 hours
- Ticks begin to die within 48 hours
- Monthly use helps prevent reinfestation by targeting all life stages of the flea
- Works best when all pets in the household are treated at the same time
For severe infestations, environmental cleaning may also be necessary.
💡 Cat Owner Note
If your cat is scratching like crazy or you are seeing fleas despite your best efforts, Frontline Plus can be a lifesaver. One simple application, once a month, and you get peace of mind for your cat and your home. Just make sure to apply it correctly and don’t skip months.
❓ Frequently Asked Questions About Frontline Plus for Cats
How quickly does Frontline Plus work?
Fleas begin to die within 12 to 24 hours, and ticks within 48 hours of application.
Can I use Frontline Plus on kittens?
Yes, but only on kittens eight weeks of age or older and weighing at least 1.5 pounds.
Can I bathe my cat after applying Frontline Plus?
Yes, but wait at least 24 to 48 hours after application. Use a mild, non medicated shampoo if needed.
Is Frontline Plus safe for pregnant or nursing cats?
Yes, it is generally considered safe, but always check with your vet first.
Do I need to treat my indoor cat?
Yes. Fleas and ticks can still enter your home through windows, shoes, or other pets.
What should I do if my cat licks the application site?
Monitor closely. Mild drooling or foaming at the mouth may occur. Call your vet if symptoms are severe or persist.