About dexmedetomidine, which of the following is incorrect?
A. It is not necessary to discontinue before extubation. In healthy volunteers, no respiratory depression was found.
B. Serious adverse reactions reported include hypotension, bradycardia and sinus arrest, as well as transient hypertension.
C. US FDA approved continuous infusion for up to 24 hours. If it is to be administered for >24 hours and abruptly stopped, withdrawal symptoms are possible.
D. It is a novel opioid group of sedative.
Answer: D
It is a selective alpha-2-adrenergic agonist with sedative properties.