title: Morphine distribution after oral and subcutaneous administration.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001921:Brain / Q000378:metabolism; D007279:Injections, Subcutaneous; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000378:metabolism* / Q000494:pharmacology; D051381:Rats; D011930:Reaction Time / Q000187:drug effects
chemical_list: D009020:Morphine