"Pentazocine"@en . . . . . "For the relief of moderate to severe pain."@en . "2 to 3 hours"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "359-83-1"@en . . . "Take without regard to meals. Avoid alcohol."@en . . . . . . . . . . . . . "Pentazocine"@en . . . "Pentazocina"@en . . . "approved"@en . . . . . "Fortral"@en . "Humans and other mammals"@en . . . . . "The preponderance of evidence suggests that pentazocine antagonizes the opioid effects by competing for the same receptor sites, especially the opioid mu receptor."@en . . . . " "@en . " "@en . . . "The first mixed agonist-antagonist analgesic to be marketed. It is an agonist at the kappa and sigma opioid receptors and has a weak antagonist action at the mu receptor. (From AMA Drug Evaluations Annual, 1991, p97)"@en . "Pentazocinum"@en . . . . . . . . . . . "Well absorbed from the gastro-intestinal tract."@en . . "Pentazocin"@en . . .