Where Can I Buy Heartworm Medicine Over The Counter -

Below is an essay covering why these restrictions exist, the risks of "OTC" alternatives, and how you can legally and safely obtain medication for your pet.

The primary reason for a prescription is the . If a dog already has adult heartworms, administering a standard preventative can be life-threatening. Heartworm preventatives work by killing immature larvae; if they are introduced to a body filled with adult worms, the sudden "die-off" of these worms can cause a shock-like reaction or severe blockages in the heart and lungs. 2. Precision in Dosing where can i buy heartworm medicine over the counter

Heartworm medication is highly weight-specific. A veterinarian ensures your pet receives the exact dose necessary to be effective without being toxic. This is especially important for certain breeds, like Collies or Border Collies, which can have a genetic sensitivity (the MDR1 mutation) to ingredients like ivermectin commonly found in these drugs. Heartworm Basics Below is an essay covering why these restrictions

The Reality of Heartworm Medicine: Why a Prescription is Mandatory Heartworm preventatives work by killing immature larvae; if

The short answer is that in the United States . Because heartworm disease is a complex and potentially fatal condition, the U.S. Food and Drug Administration (FDA) regulates all effective preventatives as prescription-only medications.