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Program - Comfortis
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Comfortis
Program
Kills Fleas checkmark X mark
Repels Fleas X mark X mark
Kills Flea eggs and Larvae X mark Breaks the flea cycle
Kills Ticks X mark X mark
Repels Ticks X mark X mark
Kills and/or Repels Mosquitoes X mark X mark
Prevents Heartworm X mark X mark
Other Parasites Information X mark X mark
Waterproof (shampooing once a week can reduce effectiveness) N/A Not Applicable
Safe for pregnant or nursing Pets Consult your veterinarian checkmark
How long does it take to work Kills fleas within 30 minutes. Starts working immediately to stop the reproduction of adult fleas.
Taste Beef Flavor Unflavored liquid
Active Ingredient(s) Spinosad Lufenuron
RX Required checkmark X mark
Dosage
Usage Comfortis Usage Program Usage
Video /images/products/video/petmeds-flea-control-cats-program-liquid.flv
Vet Review I have started to use this product over the past several months and have mixed feelings about it. A big advantage is the ease of administering the beef and pork flavored tablet but it should be administered on full stomach. And while it avoids the oily liquid pesticides on the back that many clients don ' t like, if a pet is allergic to beef or pork this is a big disadvantage. The best thing about this product (which is similar to Capstar) is the quick kill of adult fleas working within 30 minutes and being almost 100 percent effective against fleas within 4 hours of giving it, and lasting for a month!!! (much longer than a Capstar pill.) A big problem is not only the expense but it also has no tick coverage. In my experience and opinion, I have also seen several dogs vomit when given this pill and it is really not supposed to be used in patients with seizure disorders, which is also a concern of mine in terms of safety. Along the same line, it is not supposed to be used in pregnant or nursing females, as from what I understand when the product was tested there were supposed loss of litter during pregnancy, poor weight gain of puppies and vomiting, the latter symptom which I have seen in clinical practice. In general I am always a little worried about products not approved for young puppies, as the puppies have to be at least 14 weeks of old, according to the label use of this product. It is not a cheap product, and for the above reasons I don't use it often even though it is tremendously effective against fleas. For the reasons stated above, I therefore give this product an overall rating of 2 with effectiveness (for fleas) of 4, the ease of use a 5, and the taste a 4. I still prefer Front line, Advantage and K9 Advantix despite the oily spot because of the increased coverage of parasites, and my concerns about safety Because of the difficulty for some clients in getting their cats to take pills, the development of this flavorable suspension to mix easily with their wet food has made compliance and efficacy of flea control a lot easier.  Getting felines to take medication can always be a challenge.  When not accepted in food, many clients have found mixing in various tuna or clam juices, oil, broth, gravy or sardines another way of administering this and other medications. As mentioned in my product review on program tablets, this product works best when given with meals for maximal absorption as well as before fleas are firmly established on the pet and in the home. It works by preventing development of flea eggs and larvae by in essence sterilizing the adult fleas who happen to bite the animal.  The product does not kill existing adult fleas and must be combined with other products like Capstar or topical Advantage or Frontline in pets with active flea populations.  I find it works best as a preventative before flea season.  Many clients will chose to use this and other flea products year round due to the warming of the climate and the unpredictability of the flea season.  I give this product an overall rating of a 4 with an ease of use and taste a 5 and efficacy a 4.
Our expert panel consists of licensed veterinarians and the knowledgeable staff of PetMed Express, Inc. d/b/a 1-800-PetMeds. Neither the Company nor any of its employees or consultants make any warranties, expressed or implied, or representations about the accuracy or completeness of the content or the content of any site or external sites. Likewise, no legal liability or responsibility is assumed for the accuracy or completeness of any information, or usefulness of products discussed. While every effort has been made to accurately represent the qualities and characteristics of each product, which for the most part were taken directly from the websites of the manufacturers, we are not responsible for any errors. The information presented is for educational purposes only and is intended to be a supplement to, and not a substitute for, the expertise and professional judgment of your veterinarian. The information is NOT to be used for diagnosis or treatment of your pet. You should always consult your own veterinarian for specific advice concerning the treatment of your pet. The information is not intended to cover all possible uses, directions, precautions, warnings, allergic reactions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for your pet. It is not a substitute for a veterinary exam, and it does not replace the need for services provided by your veterinarian. Note: Any trademarks are the property of their respective companies.

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