Heartworm disease treatment in dogs involves a complex, multi-month protocol that requires strict activity restriction and carries significant welfare implications for both treated and untreated animals.
Heartworm disease causes severe suffering through progressive heart failure, respiratory distress, and exercise intolerance. Untreated, it is fatal. Treatment itself carries welfare costs - the exercise restriction required during the 6-8 week recovery period is extremely difficult for active dogs and causes frustration and behavioral distress. The treatment protocol is also physically uncomfortable, involving deep muscle injections and potential inflammatory reactions. Prevention through monthly medication is far kinder than treating established infection, both financially and in terms of animal welfare.