<unk>  <unk>  is a medication used for heart failure, esophageal spasms, and to treat and prevent chest pain from not enough blood flow to the heart. It has been found to be particularly useful in heart failure due to systolic dysfunction together with hydralazine. It is taken by mouth or under the tongue. Common side effects include headache, lightheadedness with standing, and blurred vision. Severe side effects include low blood pressure. It is unclear if use in pregnancy is safe for the baby. It should not be used together with medications within the sildenafil family.<unk>  is in the nitrate family of medications and works by dilating blood vessels.<unk>  was first written about in 1939. It is on the World Health Organization's List of Essential Medicines.<unk>  is available as a generic medication. A long-acting form exists.
Isosorbide dinitrate
Isosorbide mononitrate
Balsalazide
Minoxidil
Sodium nitroprusside
Telmisartan
Captopril
Nitroglycerin 