we measured plasma nitrate levels and haemodynamics following sublingual glyceryl trinitrate ( gtn ) ( 0.5 mg ) , or isosorbide dinitrate ( isdn ) administered intravenously ( 0.5 mg ) or by inhalation ( 1.25 mg ) in 23 patients undergoing cardiac catheterisation for investigation of chest pain .
C0028125
nitrate
C0017887
glyceryl trinitrate