Trifexis for Dogs (Rx)

  • Prescription
  • Dogs
  • Flea & Tick
Trifexis for Dogs (Rx)
Trifexis® Chewable Tablets are beef-flavored chewable tablets administered once a month to protect your dog from heartworm disease, kills fleas and prevents flea infestations, and treats and controls adult hookworms, roundworm and whipworm infections.
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($135.98 / unit)

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Medication information

What is Trifexis?

Trifexis® is a beef-flavored chewable tablet for dogs that kills fleas and prevents flea infestations, prevents heartworm disease, and treats and controls adult hookworm, roundworm, and whipworm infections. This is a 6-month supply.

What does Trifexis treat?

Trifexis is a monthly medication that:

  • Kills fleas and prevents flea infestations 
  • Prevents heartworm disease
  • Treats and controls adult hookworm, roundworm, and whipworm infections

How is Trifexis given?

Give Trifexis once a month with food for maximum effectiveness. This chewable, beef-flavored tablet that can be given as a treat. 

Who is Trifexis for?

Dogs and puppies 8 weeks and older, weighing 5 lbs or more

What are the active ingredients of Trifexis?

The active ingredients in Trifexis are Spinosad and milbemycin oxime. 

What are the possible side effects of Trifexis?

When used as prescribed, side effects while using Trifexis are rare. The most common side effects include vomiting, fatigue (lethargy), itchy skin, lack of appetite, diarrhea, trembling/shaking, lack of coordination, drooling, reddening of the skin, and seizures.

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