http://vocabularios.saij.gob.ar/vuce/http://vocabularios.saij.gob.ar/vuce/skos/14997Metazocina http://vocabularios.saij.gob.ar/vuce/skos/14997 Drotebanol; fenazocina; fenomorfan; levofenacilmorfan; levometorfan; levorfanol; metazocina; norlevorfanol; racemetorfan BT