If your dog is undergoing heartworm treatment, contact your veterinarian now. If you are not using a heartworm preventative, perhaps this news story will convince you to do so.
IMMITICIDE®,(melarsomine dihydrochloride) the medication used to treat heartworm disease in dogs is currently unavailable (except for product already on the shelves). Merial reports the company that manufactures IMMITICIDE® is experiencing technical issues in their plant which will temporarily affect their ability to provide a product to Merial to distribute.
A Merial spokesperson told me, "As a result, we anticipate that there will be a product outage that will last from several weeks to months. However, we are working diligently to mitigate this situation, and there is a possibility that an alternate source of supply may be identified. Merial and the IMMITICIDE® manufacturer fully understand the critical need for the product and regret this outage. We are working together to return to full supply as quickly as possible."
For the general public and for veterinarians, further information on appropriate medical management of dogs with heartworm disease, and also updates concerning drug availability will be available through the American Heartworm Society.
Best of all - avoid any potential need for heartworm treatment by using a preventative. By the way, in cats, there is no treatment for heartworm disease. Prevention is best!