-5%
GTN is used to treat and prevent heart-related chest pain (angina). Angina occurs when the heart muscle is not getting enough blood. This medicine works by relaxing and widening blood vessels so blood can flow more easily to the heart. GTN should be taken in the dose and duration as advised by your doctor. It may be taken with or without food, preferably at a fixed time each day.
Do not consume more than the recommended dose, as this may have harmful effects on your body. You can develop tolerance to this medicine over time, which means that the same dose becomes less effective. You have to stick to a really specific dosing schedule to prevent this from happening. The most common side effect of this medicine is headache which may be severe. This can sometimes be helped by drinking plenty of fluids and avoiding alcohol. You may also experience lightheadedness, which could increase your risk of having a fall. There are other, rarer side effects, some of them serious. Ask your doctor and read the leaflet which comes with the medicine to make sure you are keeping safe. Do not use GTN if you are taking medicines to treat high blood pressure in your lungs (pulmonary hypertension), erectile dysfunction or if you have anemia or glaucoma (increased pressure inside the eye). Always tell your doctor what other health conditions you have and what other medicines you are taking. It is best not to drink alcohol with this medicine as it increases some of the side effects. If you are affected by dizziness, avoid driving. If you are pregnant, planning to become pregnant, or breastfeeding, ask your doctor before taking this medicine.
UNSAFE
Consuming alcohol while taking GTN may cause symptoms such as flushing, increased heart beat, nausea, thirst, chest pain and low blood pressure (Disulfiram reaction).
SAFE IF PRESCRIBED
GTN is generally considered safe to use during pregnancy. Animal studies have shown low or no adverse effects to the developing baby; however, there are limited human studies.
SAFE IF PRESCRIBED
GTN is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby.
UNSAFE
GTN may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.
SAFE IF PRESCRIBED
GTN is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of GTN may not be needed in these patients. Please consult your doctor.
CONSULT YOUR DOCTOR
There is limited information available on the use of GTN in patients with liver disease. Please consult your doctor.