A stereospecific action of morphine on brain stem neuronal activity: a microiontophoretic study.
D000818:Animals; D001933:Brain Stem / Q000187:drug effects*; D003917:Dextrorphan / Q000494:pharmacology; D066298:In Vitro Techniques; D007478:Iontophoresis; D007981:Levorphanol / Q000494:pharmacology; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000494:pharmacology*; D009474:Neurons / Q000187:drug effects*; D051381:Rats; D013237:Stereoisomerism
D003917:Dextrorphan; D007981:Levorphanol; D009020:Morphine