Before you can buy any preventative, your pet must have a . Giving preventative medication to a heartworm-positive pet can cause a severe, life-threatening reaction as the young worms die off too quickly. Most veterinarians recommend annual testing even if your pet is on year-round prevention. 2. Choose the Right Form of Protection
Some local human pharmacies (like Costco or Walgreens) now carry pet medications and may accept your vet's prescription. Quick Comparison: Popular Options Medication buy heartworm medicine
Applied to the skin, products like Advantage Multi also often cover fleas and ear mites. Before you can buy any preventative, your pet must have a