title: Advantages of using labeled molecules in pharmacodynamic studies of adrenal function.
mesh_terms: D000311:Adrenal Glands / Q000187:drug effects / Q000378:metabolism / Q000502:physiology*; D000818:Animals; D004809:Ephedrine / Q000031:analogs & derivatives / Q000378:metabolism; D007553:Isotope Labeling; D009638:Norepinephrine / Q000096:biosynthesis / Q000378:metabolism; D010600:Pharmacology; D013566:Sympathomimetics / Q000494:pharmacology; D013618:Tachyphylaxis; D014316:Tritium / Q000378:metabolism
chemical_list: D013566:Sympathomimetics; D014316:Tritium; D004809:Ephedrine; D009638:Norepinephrine