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Frontline Plus (tm) Flea and Tick Control

- Adds methoprene to the ingredient in Frontline Top Spot -

Summary: Frontline Plus (tm) is a very effective, spot-on flea and tick control medication for pets. The "Plus" part refers to the addition of methoprene to the basic formula of Frontline Top Spot. Methoprene, however, is better applied to the "nest" rather than to the pet itself.

Jack DeAngelis, PhD
OSU Ext. Entomologist (ret.)

What is Frontline Plus?

Frontline Plus adds methoprene, an insect growth regulator, to the basic ingredient in Frontline Top Spot. Frontline Plus enjoys all of the advantages of Frontline Top Spot including: can be safely used on both cats and dogs, it effectively controls fleas for 90 days and ticks for 30 days, is waterproof, and does not contain permethrin which is toxic to cats.

However, I believe methoprene is better applied as a separate treatment (here's why). So, while Frontline Plus would be a excellent choice for anyone that did not want to bother with a separate methoprene treatment, I prefer to apply these treatments separately.

Adult cat flea (original photo by Ken Gray)

Adult cat flea (1/5"-1/10") moves between the host animal and "nest" (pet bedding, etc.).

Frontline comes in small, measured-dose applicators where the amount of liquid is matched to the weight of the animal. Four dosage levels are available for dogs, one level for cats and kittens. Once applied the insecticide quickly spreads over the skin providing protection against flea and tick bites for at least a month. Be careful to apply the liquid to the pet's skin not to the fur; see our suggestions for how to apply spot-on flea control. Also, if you have not already done so, before continuing please be sure to read over the general information and precautions about using any of the flea control products.

 

Fipronil, the active ingredient in all Frontline products, is not readily absorbed so there is less chance of side effects compared to systemic flea medications. Package instructions say that monthly applications are allowed; however, unless fleas are frequently re-introduced into the pet's environment, or continuous tick protection is needed, monthly applications probably are not needed. Re-apply when fleas, "flea-dirt" or ticks are found.

If you live in a region where heartworm has been reported (ask your vet) your pets should be protected from this serious, often fatal, parasitic infection. Even though heartworm is transmitted by mosquito bites we believe that systemic heartworm medications are better protection than topically applied mosquito repellents such as K9 Advantix. See the heartworm page for additional information.

Where to purchase Frontline Plus (tm)

Frontline products are available without a prescription from your local veterinarian clinic and online. Buying directly from an online source is generally much less expensive than vet clinics. Frontline is sold in 3 and 6-dose packages, in 4 different dosage levels for dogs and puppies, and 3, 6 and 12-dose packages at 1 dosage level for cats and kittens. Click on the National Pet Pharmacy banner (right) for more information and to purchase online.

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Click on the National Pet Pharmacy banner above for more information and to purchase any of the flea and tick medications mentioned here. National Pet Pharmacy offers free shipping on most flea and tick products. Shopping through this link also supports continued growth of 'Bugs. Thanks.

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Mission: To provide accurate, up-to-date and unbiased information for solving common insect and mite problems around your home, business and landscape using least-toxic methods.

Jack DeAngelis, Ph.D.

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