Ivermectin is only used to treat gastroenteritis.
In dogs, ivermectin is routinely used as prophylaxis against heartworm
 However, the American Academy of Pediatrics cautions against use of ivermectin in such patients, as the blood-brain barrier is less developed, and thus there may be an increased risk of particular CNS side effects such as encephalopathy, ataxia, coma, or death

