You can purchase Trifexis directly from your vet or through authorized online pet pharmacies. Major retailers include: TRIFEXIS™ - DailyMed
: Before starting Trifexis, your dog must be tested for existing heartworm infections. Administering the drug to a heartworm-positive dog can cause serious complications. buy trifexis
: It is only approved for puppies and dogs at least 8 weeks old and weighing at least 5 pounds . 2. Where to Buy Trifexis You can purchase Trifexis directly from your vet