Uses of Nitroglycerin

Nitroglycerin is used for the prevention of angina pectoris due to coronary artery disease.

Therapeutic Category

Nitroglycerin: Vasodilators   

How Nitroglycerin works

Nitroglycerin causes relaxation of smooth muscles within blood vessels which leads to relaxation and widening of blood vessels. This improves blood supply to the heart muscles. As a result, it helps to relieve chest pain and blood pressure.

Common side effects of Nitroglycerin

• throbbing headache
• spinning sensation
• fall in blood pressure when seated or standing up
• dizziness, drowsiness
• lack of energy 

When to consult your doctor

Consult your doctor:

• In case of accidental overdosage
• If you experience worsening of angina symptoms such as chest pain
• If you experience signs of hypoxaemia (low levels of oxygen in blood) (difficulty breathing, increased rate of breathing)
• If you experience signs of methemoglobinemia (breathing problems, tiredness, headache)
• If you experience difficulty breathing, bluish discolouration of the lips, fingers or toes (cyanosis)
• If you experience rapid or slowed heartbeat
• If you experience blindness in one eye
• If you experience cerebral ischaemia (impaired blood flow to brain) which may cause weakness in one leg or arm, or weakness in one entire side of the body
• If you experience difficulty speaking, slurred speech
• If you experience loss of coordination
• If you experience allergic skin reactions

Health Tips for Nitroglycerin

• Adopt a balanced diet that is low in saturated fats, cholesterol and sodium. Include plenty of fruits, vegetables, whole grains and lean proteins in your meals
• High doses of caffeine can increase heart rate and blood pressure, potentially triggering angina in some individuals. Moderation is key if you consume caffeinated beverages
• Alcohol consumption can lower blood pressure and interact with this medicine, potentially leading to dizziness or fainting. It's best to avoid alcohol while taking this medication
• Smoking can constrict blood vessels and worsen angina symptoms. Quitting smoking or avoiding tobacco products can significantly improve heart health
• If you are overweight or obese, losing weight can reduce the strain on your heart and improve angina symptoms
• Keep this medicine with you at all times, especially if you experience angina episodes. This includes carrying it when going out or traveling
• Take this medicine exactly as prescribed by your doctor. Follow the dosing schedule and instructions carefully