what does levallorphan mean?

LEVALLORPHAN as NOUN

Meaning
- drug (trade name Lorfan) that is related to morphine but that counteracts the respiratory depression produced by morphine poisoning but without affecting its analgesic effects
Synonym(s)
- Lorfan (what does Lorfan mean?)
Hypernyms(s) levallorphan is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
- drug (what does drug mean?)