<unk> (Lingual spray) is a nitrate vasodilator that is FDA approved for the prophylaxis of angina pectoris due to coronary artery disease.   Common adverse reactions include headache, dizziness and paresthesia.
Nitroglycerin 
Nitroprusside
Endralazine
Imolamine
Amrinone
Papaverine
Adenosine
Nadolol 