Where to buy Trifexis
Want to purchase Trifexis® (spinosad + milbemycin oxime)? Trifexis is a prescription product that should only be purchased from a veterinarian—your best source of advice about your dog’s health care. Learn more about how to buy Trifexis from your veterinary clinic or how to purchase Trifexis online.
How to purchase Trifexis in your Veterinarian’s clinic
Make an appointment to bring your dog in to your veterinary clinic
Ask your veterinarian for Trifexis
Purchase your 6-month or 12-month supply of Trifexis
If you can't find your veterinary clinic on VetSource, please call your clinic directly to purchase Trifexis® (spinosad + milbemycin oxime).
IMPORTANT SAFETY INFORMATION
The use of ivermectin at higher than FDA-approved doses at the same time as Trifexis can result in serious side effects. Treatment with fewer than three monthly doses after the last exposure to mosquitoes may not provide complete heartworm prevention. Prior to administration of Trifexis, dogs should be tested for existing heartworm infection. Use with caution in breeding females. The safe use of Trifexis in breeding males has not been evaluated. Use with caution in dogs with pre-existing epilepsy.
The most common adverse reactions reported are vomiting, depression/lethargy, itching, decreased appetite, and diarrhea. To ensure heartworm prevention, observe your dog for one hour after administration. If vomiting occurs within an hour of administration, redose with another full dose. Puppies less than 14 weeks of age may experience a higher rate of vomiting. Like all medications, keep Trifexis out of reach of children.
View full product label for complete safety information.