title: Bioavailability of morphine from rectal suppositories.
mesh_terms: D001682:Biological Availability; D006801:Humans; D009020:Morphine / Q000008:administration & dosage / Q000378:metabolism*; D012007:Rectum; D013488:Suppositories
chemical_list: D013488:Suppositories; D009020:Morphine