Comfortis™ – the latest breakthrough in flea protection

Comfortis(TM) box

Comfortis® – the latest breakthrough in flea protection

Comfortis® is the first FDA-approved, chewable, beef-flavored tablet that kills fleas and prevents flea infestations on dogs for a full month.


Doesn't wash off: for dogs that swim or are bathed frequently

Here are just a few of the features that set Comfortis® apart from other flea products you may have used in the past:

  • Beef-flavored, palatable, chewable tablet
  • Easy to give with no mess
  • Starts to kill fleas in 30 minutes
  • Lasts a full month
  • Kills fleas before they can lay eggs
  • Approved by the FDA
  • Demonstrated safe for dogs and puppies 14 weeks and older

Comfortis® offers proven flea protection plus these family-friendly features


Family-friendly: no need to isolate the pet

Along with fast-acting, month-long flea protection, Comfortis® offers these additional benefits:

  • With Comfortis®, you can play with your dog immediately after treatment. No need to isolate pets. Just treat and play.
  • Because Comfortis® is administered orally, there’s no risk of application site reactions.
  • Comfortis® won’t stain carpeting, upholstery or clothing.
  • Comfortis® can’t be rubbed or shaken off.

Important Safety Information

  • The most common adverse reaction reported is vomiting.
  • Other adverse reactions reported in decreasing order of frequency are: depression/lethargy, decreased appetite, incoordination, diarrhea, itching, trembling, excessive salivation and seizures.
  • Following concomitant extra label use of ivermectin with Comfortis, some dogs have experienced the following clinical signs: trembling/twitching, salivation /drooling, seizures, incoordination, excessive dilation of pupils, blindness and disorientation.
  • Post approval experience continues to support the safety of Comfortis when used concurrently with heartworm preventatives according to label directions.
  • Click here for full product label including complete safety information.
Easy to feed medication is just right to this dog.