Just purchased 5 month old Lab. He's had all his vaccinations. Must I take him to the vet just to get heartworm meds? Can't I just get them online? He's very healthy and I don't want to expose him to any disease unnecessarily.
Most vets require a yearly heartworm test. Once the heartworm test is complete then you can ask your vet for a prescription for heartworm prevention. Heartworm preventative is a prescription medication. vetcare