Nitroglycerin is contraindicated if you have any of the following conditions:
- an unusual or allergic reaction to nitroglycerin, other medicines, foods, dyes, or preservatives;
- head injury, recent stroke, or bleeding in the brain;
- liver disease;
- pregnant or trying to get pregnant;
- previous heart attack;
- if you are allergic to Nitroglycerin;
- if you are allergic to similar drugs (isosorbide mononitrate);
- if you have anemia;
- if you have any other allergies;
- if you have loss of too much body water (dehydration);
- if you have low blood pressure;
- if you have other heart problems (recent heart attack);
Angina occurs when the heart muscle is not getting enough blood.
Nitroglycerin belongs to a class of drugs known as nitrates.
Nitroglycerin is a type of vasodilator.
Nitroglycerin is prescribed before physical activities (such as exercise, sexual activity) to prevent chest pain (angina) in people with a certain heart condition (coronary artery disease).
Nitroglycerin is prescribed to prevent chest pain before activities like climbing stairs, going outdoors in cold weather, or sexual activity.
Nitroglycerin is prescribed to relieve chest pain caused by angina.
Nitroglycerin is prescribed to relieve chest pain in these people once it occurs.
Nitroglycerin relaxes blood vessels, increasing the blood and oxygen supply to your heart.
Nitroglycerin works by relaxing and widening blood vessels so blood can flow more easily to the heart.
Reported Nitroglycerin overdose symptoms are:
- Bluish fingers/toes/lips;
- Cold/clammy skin;
- Severe nausea/vomiting;
- Slow heartbeat;
- Vision changes;
Do not take Nitroglycerin with any of the following drugs:
- certain migraine medicines like ergotamine and dihydroergotamine (dhe);
- medicines for high blood pressure;
- medicines for mental depression;
- medicines prescribed to treat erectile dysfunction like sildenafil, tadalafil, and vardenafil;
- other medicines prescribed to treat angina;
- phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine;
- alpha blockers;
- certain drugs to treat migraine headaches (ergot alkaloids such as ergotamine);
- drugs that lower blood pressure;
- drugs to treat erectile dysfunction;
Nitroglycerin side effects that you should report to your health care professional or doctor as soon as possible:
- blurred vision;
- dry mouth;
- flushing of the face or neck;
- irregular heartbeat, palpitations;
- nausea, vomiting;
- skin rash;
- the feeling of extreme pressure in the head;
- unusually weak or tired;
- fast/irregular/pounding heartbeat;
- itching/swelling (especially of the face/tongue/throat);
- severe dizziness;
- trouble breathing;