DIROBAN (melarsomine dihydrochloride) Brand Logo

A heartworm-positive diagnosis is devastating news, but we're here to help. Along with guidance from your veterinarian, we’ll provide the information and support you’ll need to get through this—together.

Melarsomine dihydrochloride, the active ingredient in DIROBAN, is veterinarians' first choice1 for heartworm treatment and helps dogs return to their normal lives as soon as possible.