benzomorphan

ben·zo·mor·phan

(ben'zō-mōr'fan),
The parent compound of a series of analgesics that includes pentazocine and phenazocine; it does not possess analgesic properties itself.
References in periodicals archive ?
This synthetic member of the benzomorphan series is structurally similar to other drugs having the various degrees of narcotic agonist and antagonist properties at room temperature.
INTRODUCTION: Pentazocine, belonging to benzomorphan series was the first mixed agonist-antagonist opioid analgesic to be marketed.