Some observations on the use of phenazocine (narphen) in Anaesthesia
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Narphen is a potent analgesic for use during anaesthesia, and absence of restlessness in the post-operative period would suggest a prolongation of effect.
A pethidine-like respiratory depression occurs, which can be reversed by lethidrone, without any noticeable reduction in analgesia.
The patient can be maintained in adequate acid-base balance for long periods of anaesthesia with spontaneous respiration.
The drug is remarkably free from unpleasant side effects. It causes no cardiovascular depression, and minimal post-operative sequelae.
The recovery time is rapid.