Tamil Nadu researchers have sounded a fresh warning over the continued threat posed by a banned veterinary drug to India’s critically endangered vultures, after a major new study confirmed that diclofenac — prohibited nearly two decades ago — is still being used to treat livestock across several regions in the country.  

The findings are part of the study: "The continued threat of toxic NSAIDs to Critically Endangered Gyps vultures in South Asia", conducted by 13 researchers between 2012 and 2024 and published recently in Bird Conservation International.