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COMFORTIS (Spinosad) chewable tablets is a veterinary medicine that may be prescribed by or on the order of a licensed veterinarian. COMFORTIS chewable tablets may be used to treat and preventflea infestationsin dogs, puppies, cats, and kittens. COMFORTIS (Spinosad) contains the insecticides spinosyn A and spinosyn D. Spinosyn molecules work by activating nicotinic acetylcholine receptors in fleas. By activating these receptors, COMFORTIS causes involuntary muscle contractions in insects which causes paralysis and death.

Comfortis Chewable Tablets (Spinosad)

  • Give COMFORTIS (Spinosad) to your animal orally once per month for as long as directed by your veterinarian. COMFORTIS may be used on cats and kittens 14 weeks of age or older and 4.1 pounds or larger. COMFORTIS flea pill for dogs and puppies should be used on those 14 weeks of age or older and 5.0 pounds or larger.
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