Letter: Names of drugs.
D004837:Epinephrine; D008012:Lidocaine; D008614:Meperidine; D009638:Norepinephrine; D004364:Pharmaceutical Preparations; D009626:Terminology as Topic; D006113:United Kingdom; D014481:United States
D004364:Pharmaceutical Preparations; D008012:Lidocaine; D008614:Meperidine; D009638:Norepinephrine; D004837:Epinephrine