What veterinary drug is identified as the primary reason for the devastating population collapse of the Red-headed Vulture?

Answer

diclofenac

The most devastating factor driving the Red-headed Vulture toward extinction is the widespread veterinary use of diclofenac. This drug, a non-steroidal anti-inflammatory drug (NSAID), was commonly administered to treat livestock like cattle and water buffalo. When these treated animals subsequently died, their carcasses served as lethal food sources for vultures feeding upon them. Ingesting even small quantities of diclofenac leads directly to acute renal failure in the birds, resulting in rapid death. Although banned in several key range countries, its lingering presence or illicit use in adjacent areas continues the threat.

What veterinary drug is identified as the primary reason for the devastating population collapse of the Red-headed Vulture?
populationbirdanimalconservationvulture