Two ways to buy Trifexis® (spinosad + milbemycin oxime)

Trifexis is available by prescription only from a veterinarian—your best source of advice about your dog’s health care.

How to purchase Trifexis in your Veterinarian’s clinic

1Make an appointment to bring your dog in to your veterinary clinic

2Ask your veterinarian for Trifexis

3Purchase your 6-month or 12-month supply of Trifexis

See if your veterinarian sells trifexis through our online partner


If you can't find your veterinary clinic on VetSource, please call your clinic directly to purchase Trifexis® (spinosad + milbemycin oxime).