Comfortis



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This prescription medication requires a current annual visit to a Penny Paws clinic. We also require a current annual heartworm test for canine medication containing heartworm preventive.

Rebates available here.

 What is Comfortis for Dogs & Cats?

Comfortis is the first FDA-approved, chewable beef-flavored tablet that kills fleas and prevents flea infestations on dogs and cats for a full month.  Comfortis for Dogs & Cats requires a prescription from Penny Paws.
For: 
Dogs & Cats (14 weeks of age or older)
 
Benefits:
Starts killing fleas within 30 minutes
Lasts a full month
Kills fleas before they can lay eggs
Comes in a convenient chewable, beef-flavored tablet
Spinosad, the active ingredient in Comfortis, is environmentally friendly

 

How it works: 
Spinosad kills fleas by causing excitation of the insect's nervous system, leading to paralysis and rapid death.

Cautions: 
Side effects may occur, including vomiting. If your pet is experiencing loss of appetite, lethargy, or any other difference in behavior, contact your veterinarian. The FDA has received reports of adverse reactions in dogs receiving the drug Comfortis (spinosad) concurrently with high, extra-label doses of ivermectin. Dogs receiving extra-label doses of ivermectin to treat non-responsive demodectic mange and other conditions have developed signs of ivermectin toxicity. Ivermectin is an ingredient found in heartworm preventatives such as Heartgard Plus, Heartgard, Iverhart Plus and Ivomec. In cats, the most common adverse reaction recorded in clinical trials was vomiting. Other adverse reactions were: lethargy, decreased appetite, weight loss, and diarrhea. Use with caution with concomitant extra-label use of ivermectin.

 


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