Ivermectin has been FDA-approved for human use since 1987 — with an estimated 3.7 billion doses administered globally and a Nobel Prize for its discoverers. But the controversy around COVID-19, veterinary formulations, and cancer protocols has left millions of Americans confused about what the FDA actually says. This complete 2026 guide separates the facts: what Ivermectin IS approved for, why veterinary Ivermectin is dangerous while human-grade Ivermectin is safe.