How Long Does Heartworm Treatment Take in Dogs? Recovery Timeline Explained
Hearing a vet say your dog tested positive for heartworms is a gut punch. Instantly, your mind races with a hundred questions, but the biggest one is usually: How long is this going to take? The short answer? You are looking at a three- to four-month active treatment process , followed by a few months of careful monitoring. It’s not a quick fix. Treating heartworms requires patience, strict rules, and a deep breath. But the good news is that the protocol recommended by the American Heartworm Society is highly effective. If you stick to the plan, your best friend has a fantastic shot at a full, happy life afterward. Here is exactly what the road ahead looks like, broken down day by day. The Dog Heartworm Treatment Timeline Days 1–30: Preparation. Antibiotics (Doxycycline) and monthly preventatives to weaken the worms. Day 60: First melarsomine injection. Strict crate rest begins. Days 90 & 91: Second and third injections given back-to-back. Day 120: Official treatment ends...