I heard on the news that there is a shortage of medicine to treat heartworms. Is this true?

Unfortunately, this is the case. Immiticide, the only FDA approved drug used to treat active heartworm infections, is currently unavailable. The supply has been depleted because the manufacturer is experiencing issues with production. It is uncertain how long this shortage will last.  Immiticide should not be confused with heartworm preventatives. It is a powerful adulticide […]