Patients who take glyceryl trinitrate (
nitroglycerin) and drink
alcohol may feel faint and dizzy because of an increased susceptibility to postural hypotension.
The consumption of
alcohol should not stop patients from using glyceryl trinitrate (
nitroglycerin), but they should be warned of the possible effects and told what to do if they feel faint and dizzy (i.e. lie down, and to remain lying down until
symptoms abate).