and like morphine it produces dose-related euphoria, drug liking, pupillary constriction, respiratory depression and sedation. However, acute,
high doses of
buprenorphine have been shown to have a blunting effect on both physiological and psychological effects due to its partial opioid activity.
Buprenorphine is a long-acting (24-72 hours) opioid that produces less respiratory depression at high doses than other narcotic treatment drugs.