All have both SEDATIVE and ANALGESIC properties EXCEPT:

PROPOFOL = pure sedative/hypnotic (GABA-A receptor) with NO intrinsic analgesia. Provides excellent sedation but does not relieve pain. Nitrous oxide = sedative + analgesic (opioid-like). Ketamine = dissociative sedation + profound analgesia (NMDA antagonist). Opioids = analgesics + sedation.