isoflurane + analgesic drug

Isoflurane + analgesic drug refers to the combination of the inhalational general anesthetic isoflurane with an additional analgesic agent, typically used in both human and veterinary medicine to achieve balanced anesthesia. Isoflurane acts as a volatile anesthetic for induction and maintenance of general anesthesia by enhancing inhibitory neurotransmission (notably via GABA receptors) and reducing neuronal excitability. Analgesic drugs co-administered may include opioids (such as butorphanol or buprenorphine), alpha-2 agonists (such as xylazine or medetomidine), or other agents like ketamine, which provide pain relief and can reduce the required dose of isoflurane, improving cardiorespiratory stability during procedures[3][5][7]. The combination aims to optimize anesthesia depth while minimizing side effects such as respiratory depression.