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What is 50% oxygen/50% nitrous oxide premix?
Pronunciation: /ˈfɪfti ˈɑksɪʤən ˈfɪfti ˈnɪtrəs ˈɑkˌsaɪd premix*/
50% oxygen/50% nitrous oxide premix
Definition
An equimolar gas mixture of oxygen (O2) and nitrous oxide (N2O) with potential analgesic activity. Upon inhalation, 50% oxygen/50% nitrous oxide premix produces rapidly reversible analgesia. The exact mechanism through which nitrous oxide exerts its analgesic effect has yet to be fully elucidated, but it appears to be associated with the neuronal release of endogenous opioid peptides.