<unk> (Oral extended-release capsule) is a antianginal that is FDA approved for the prevention of angina pectoris due to coronary artery disease.   Common adverse reactions include flushing, hypotension, dizziness, headache, lightheadedness.
Nitroglycerin 
Nitroprusside
Endralazine
Imolamine
Amrinone
Papaverine
Adenosine
Nadolol 