Naloxone enhancement of memory.
D000818:Animals; D001362:Avoidance Learning / Q000187:drug effects; D008297:Male; D008568:Memory / Q000187:drug effects*; D011939:Mental Recall / Q000187:drug effects*; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000494:pharmacology*; D051381:Rats; D011916:Rats, Inbred F344; D011930:Reaction Time / Q000187:drug effects; D012153:Retention, Psychology / Q000187:drug effects
D009270:Naloxone; D009020:Morphine