Echocardiographic effects of medetomidine, butorphanol, and their combination in donkeys
BMC Vet Res. 2026 Jul 4. doi: 10.1186/s12917-026-05678-3. Online ahead of print.ABSTRACTBACKGROUND: Standing sedation is frequently required in donkeys for minor surgical and diagnostic procedures, yet information on the cardiac safety of α2-adrenoceptor agonists and opioid combinations in this spec

