: Certain breeds (like Collies) can have adverse reactions to specific active ingredients, which a vet must screen for. 2. How to Buy Without a Clinic Visit
While you need a prescription, you do not always need to buy the medicine from your vet's office. You can save money by using these methods: Heartworm Basics buy heartworm medicine without vet
In the United States, heartworm preventative medication is and regulated by the FDA . Legally, you cannot purchase these medications over-the-counter (OTC) from domestic retailers like PetSmart or Chewy without a veterinarian's authorization. 1. Why a Vet Prescription is Required : Certain breeds (like Collies) can have adverse
: Vets ensure the dosage is exactly right for your pet's current weight to prevent accidental underdosing or toxicity. You can save money by using these methods:
The primary reason for a prescription is safety, not just regulation: