Yes, you can buy Trifexis online, but because it contains heartworm prevention, it is classified as a . Online Purchase Process

To legally and safely purchase Trifexis online, you must follow these steps:

: Once the vet approves the request, the online pharmacy will ship the medication. Where to Buy Online Several reputable pharmacies and retailers stock Trifexis: Questions about Trifexis? - Northeast Veterinary Clinic