| levallorphan tartrate |
an analogue of levorphanol that acts as an opioid agonist-antagonist, used parenterally for its antagonistic effect in the treatment of respiratory depression caused by opioid analgesics; in the absence of narcotic-induced respiratory depression it can itself cause respiratory depression.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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