Analgesics, OpioidNarcotic or opioid substances, synthetic or semisynthetic agents producing profound analgesia, drowsiness, and changes in mood. Mood changes may be pleasurable, therefore creating a potential for the abuse of these agents; the prototype of these is morphine to which all other analgesics are compared.
MorphineThe principal alkaloid in opium and the prototype opiate analgesic and narcotic. Morphine has widespread effects in the central nervous system and on smooth muscle.
AnalgesicsCompounds capable of relieving pain without the loss of CONSCIOUSNESS or without producing ANESTHESIA.
|