Nig 5mg Injection 5.0 ml in 1 vial

Last Updated: October 2nd, 2025

Nig 5mg Injection is a product of Neon Laboratories Ltd

Composition: Nitroglycerin (5mg)

Pack of 5 ml

₹ 38.44

Note: MRP can vary depending up on batch!

*MRP inclusive of all taxes

All Details About Nig 5mg Injection

Find out detailed description, uses, directions of use, side effects, warnings and precautions, frequently asked questions about Nig 5mg Injection

Description:

Nig 5mg Injection is used to treat and prevent heart-related chest pain (angina) and hypertension (high blood pressure) during surgery. This medicine works by relaxing and widening blood vessels so blood can flow more easily to the heart. It has a very short-lived effect.

Nig 5mg Injection is given as an injection under the supervision of a doctor with careful blood pressure monitoring. This is given as a continuous infusion into a vein and should not be stopped abruptly. It should not be mixed with any other medication of any kind.

The most common side effect of Nig 5mg Injection is a 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 Nig 5mg Injection if you are taking medicines to treat high blood pressure in your lungs (pulmonary hypertension), or erectile dysfunction; or if you have anemia or glaucoma (increased pressure inside the eye). Forever 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, thinking about becoming pregnant, or breastfeeding, ask your doctor before taking this medicine.

Uses:

Directions For Use:

Your doctor or nurse will give you this medicine. Compassionately do not self administer.

Side Effects:

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Ordinary side effects of Nig

Blurred vision
Decreased blood pressure
Dizziness
Headache
Increased heart rate
Lightheadedness
Paresthesia (tingling or pricking sensation)

Warning & Precautions:

Alcohol

UNSAFE

Consuming alcohol while taking Nig 5mg Injection may cause symptoms such as flushing, increased heart beat, nausea, thirst, chest pain and low blood pressure (Disulfiram reaction).

Pregnancy

SAFE IF PRESCRIBED

Nig 5mg Injection 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.

Breast feeding

SAFE IF PRESCRIBED

Nig 5mg Injection is probably safe to use during breastfeeding. Limited human data suggests that the drug does not represent any significant risk to the baby.

Driving

UNSAFE

Nig 5mg Injection may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

SAFE IF PRESCRIBED

Nig 5mg Injection is probably safe to use in patients with kidney disease. Limited data available suggests that dose adjustment of Nig 5mg Injection may not be needed in these patients. Please consult your doctor.

Liver

CONSULT YOUR DOCTOR

There is limited information available on the use of Nig 5mg Injection in patients with liver disease. Please consult your doctor.

FAQs:

Does the effect of Nig 5mg Injection wear off after sometime?

Affirmative, excessive use of Nig 5mg Injection may cause tolerance which means that Nig 5mg Injection may lose its effectiveness on you. Therefore, doctors usually prescribe the smallest dose required for effective relief of acute angina attacks. Also, it is usually prescribed in morning and afternoon doses to give nitrate-free interval. Take it strictly as per the dosing interval prescribed by your doctor to prevent tolerance and maintain the effectiveness of Nig 5mg Injection.

What does too much Nig 5mg Injection do?

Excess Nig 5mg Injection may result in low blood pressure, sweating, nausea, vomiting, headache, weak and fast pulse. It may also cause weakness, lightheadedness on standing and the patient might even faint. The patient will require emergency medical treatment in such a case.

Does Nig 5mg Injection stop heart attacks?

Nig 5mg Injection is prescribed to prevent attacks of heart-related chest pain (angina) in patients with coronary artery disease. In this disease, the blood vessels (coronary arteries) which supply blood to the heart become narrow because of which the heart has to work harder to get enough oxygen. Nig 5mg Injection prevents angina by relaxing the blood vessels so that the heart does not have to work very hard. Also, relaxation of coronary arteries increases the oxygen supply to the heart.

Written by:
Dr. T. Sharmila Krishna
M.B.B.S., MD (Biochemistry)

Reviewed by:
Dr. Sureshbabu Yadav
M.B.B.S., DIP.DIAB, F.R.S.H

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