Which alpha-2 agonist is approved for horses and used as a sedative/analgesia, marketed under the name Dormosedan?

Which alpha-2 agonist is approved for horses and used as a sedative/analgesia, marketed under the name Dormosedan?

• A. Detomidine
• B. Romifidine
• C. Pralidoxime
• D. Norepinephrine

Answer: (A)

Detomidine is an alpha-2 adrenergic agonist that is approved for use in horses and marketed as Dormosedan for standing sedation and analgesia. It works by activating central alpha-2 receptors, which lowers norepinephrine release, producing reliable sedation with adjunct analgesia and smooth recovery. This makes it a go-to option for standing procedures or pre-anesthetic sedation in horses. Cardiovascular effects include some initial peripheral vasoconstriction with a reflex change in heart rate, followed by bradycardia and reduced cardiac output due to central sympathetic suppression. It can be reversed with an alpha-2 antagonist such as atipamezole if needed. The other options are not the Dormosedan product: romifidine is another equine alpha-2 agonist but not Dormosedan; pralidoxime is an organophosphate antidote, not a sedative; norepinephrine is a vasopressor, not an anesthetic/sedative.

Detomidine is an alpha-2 adrenergic agonist that is approved for use in horses and marketed as Dormosedan for standing sedation and analgesia. It works by activating central alpha-2 receptors, which lowers norepinephrine release, producing reliable sedation with adjunct analgesia and smooth recovery. This makes it a go-to option for standing procedures or pre-anesthetic sedation in horses. Cardiovascular effects include some initial peripheral vasoconstriction with a reflex change in heart rate, followed by bradycardia and reduced cardiac output due to central sympathetic suppression. It can be reversed with an alpha-2 antagonist such as atipamezole if needed. The other options are not the Dormosedan product: romifidine is another equine alpha-2 agonist but not Dormosedan; pralidoxime is an organophosphate antidote, not a sedative; norepinephrine is a vasopressor, not an anesthetic/sedative.