3d image of levomethorphan skeletal formula

levomethorphan lvm opioid analgesic morphinan anesthesia muscle relaxation analgesia pain relief stereoisomer racemethorphan methorphan isomer dextromethorphan dissociative hallucinogen antitussive prodrug opioid receptors nmda receptor antagonist serotonin-norepinephrine reuptake inhibitor dysphoria psychotomimetic dissociation hallucinations drug preparation mount treatment medicine medicament remedy cure medication side effect adverse action iatrogenic overdose contraindications interaction pharmacology pharmaceutics pharmaceutical pharmacy pharma pharmacodynamics pharmacokinetics 3d