Can you give NexGard to a heartworm positive dog?

Answered by Stephen Mosley

In heartworm endemic areas, it is essential to test dogs for existing heartworm infestation before administering NEXGARD SPECTRA. This is because NEXGARD SPECTRA is not indicated for microfilariae clearance and is not effective in treating existing adult heartworms. It is important to consult with a veterinarian and follow their guidance when dealing with heartworm-positive dogs.

If a dog is found to be heartworm positive, the veterinarian may choose to treat the infestation with an adulticide to remove the adult heartworms. This is typically done using medication specifically designed to kill adult heartworms. The decision to administer an adulticide will depend on the severity of the infestation and the overall health of the dog.

It is crucial to address the existing heartworm infestation before considering any preventive measures such as NEXGARD SPECTRA. Treating the adult heartworms is important to prevent further complications and ensure the dog’s overall well-being. Once the adult heartworms have been eliminated, the veterinarian can then discuss appropriate preventive measures to protect the dog from future infestations.

It is worth mentioning that heartworm disease is a serious condition that can be life-threatening if left untreated. Prevention is key in heartworm-endemic areas, and regular testing and administration of preventive medications are recommended. However, if a dog is already heartworm positive, it is crucial to focus on treating the existing infestation before considering any preventive measures.

Personal experience: I have encountered a situation where a friend’s dog was found to be heartworm positive during a routine check-up. The veterinarian recommended immediate treatment with an adulticide to remove the adult heartworms. After the treatment, the dog’s health improved significantly, and the veterinarian then recommended starting a preventive medication to protect the dog from future infestations. It was a challenging and costly process, but the well-being of the dog was the top priority.