<unk>  is a nitrate-class drug used for the prevention of angina pectoris. The sublingual patch has an onset of five minutes and a duration of action of one hour. The oral, slow release tablet has an onset of thirty minutes, and a duration of 8 hours.
Isosorbide mononitrate
Isosorbide dinitrate
Sodium nitroprusside
Minoxidil
Balsalazide
Hydralazine
Telmisartan
Captopril