Rat tissue levels of carbon-14 labeled analgetics as related to pharmacological activity.
D000818:Animals; D001345:Autoradiography; D002250:Carbon Radioisotopes; D002490:Central Nervous System / Q000378:metabolism*; D003061:Codeine / Q000378:metabolism*; D008691:Methadone; D009020:Morphine; D051381:Rats
D002250:Carbon Radioisotopes; D009020:Morphine; D008691:Methadone; D003061:Codeine
CENTRAL NERVOUS SYSTEM/metabolism; CODEINE/metabolism; METHADON; MORPHINE; RADIOAUTOGRAPHY