Enkephalins and endorphins.
D000700:Analgesics; D000818:Animals; D002490:Central Nervous System / Q000032:analysis; D004064:Digestive System / Q000032:analysis; D004594:Electrophysiology; D004723:Endorphins / Q000032:analysis / Q000378:metabolism / Q000494:pharmacology / Q000502:physiology*; D004745:Enkephalins / Q000032:analysis / Q000378:metabolism / Q000494:pharmacology / Q000502:physiology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D008968:Molecular Conformation; D009490:Neurosecretory Systems / Q000187:drug effects; D018377:Neurotransmitter Agents / Q000378:metabolism; D010902:Pituitary Gland / Q000032:analysis; D011863:Radioimmunoassay; D011957:Receptors, Opioid / Q000378:metabolism; D013329:Structure-Activity Relationship
D000700:Analgesics; D004723:Endorphins; D004745:Enkephalins; D018377:Neurotransmitter Agents; D011957:Receptors, Opioid