The topical action of morphine, levorphanol (levorphan) and the morphine antagonist levallorphan on the unanesthetized rabbit's brain.
D000818:Animals; D001921:Brain; D004569:Electroencephalography / Q000187:drug effects*; D007977:Levallorphan; D007981:Levorphanol; D009020:Morphine / Q000494:pharmacology*; D009022:Morphine Derivatives; D011817:Rabbits
D009022:Morphine Derivatives; D007981:Levorphanol; D007977:Levallorphan; D009020:Morphine
ELECTROENCEPHALOGRAPHY/effect of drugs on; MORPHINE/effects; MORPHINE/related compounds