: Dogs must test negative for heartworms before starting.
: Buy directly from your vet after an exam. can i buy trifexis over the counter
No, you cannot buy over the counter (OTC) in the United States . 💊 Prescription Requirements Trifexis is an FDA-regulated medication. A valid prescription from a veterinarian is mandatory. : Dogs must test negative for heartworms before starting
: Use reputable sites that verify your vet's info. can i buy trifexis over the counter