QN NERVOUS SYSTEM
QN02 ANALGESICS
QN02A OPIOIDS
QN02AF Morphinan derivatives
QN02AF01 butorphanol
Last updated: 2024-01-17
QN NERVOUS SYSTEM
QN02 ANALGESICS
QN02A OPIOIDS
QN02AF Morphinan derivatives
QN02AF01 butorphanol
Last updated: 2024-01-17