The parent compound of a series of analgesics that includes pentazocine and phenazocine; it does not possess analgesic properties itself.
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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.