Prescriptions 101

Pet safety comes first.

Prescriptions help pharmacies provide the correct dosage for dogs just like they do with humans. The Food and Drug Administration (FDA) requires pet owners to have a prescription from a veterinarian to buy heartworm medicine, because these medications can actually be harmful if given to a dog that is already infected. Your veterinarian will determine whether a heartworm test is needed before writing the prescription.

You have the option to choose your dog’s medicine.

There is no substitute for regular veterinary care. But it is perfectly OK to request a prescription for a medicine like PetTrust™ Plus (ivermectin/pyrantel) so you can purchase it from a retail pharmacy. Most veterinarians accommodate heartworm prescription requests because they care genuinely about protecting your dog from parasites.

IMPORTANT INFORMATION: Dogs should be tested for heartworms prior to use. In a small percentage of treated dogs, digestive and neurological side effects may occur. Please see full product insert for more information.