Isonit 30mg Tablet SR is used to prevent heart-related chest pain (angina). It works by relaxing and widening blood vessels so blood can flow more easily to the heart. This medicine will not treat an angina attack that has already begun.

Isonit 30mg Tablet SR may be taken with or without food. Your doctor will decide the dose and how often you should take them. This may change from time to time depending on how well they are working. You should take this medicine as it has been prescribed and keep taking it, even if you feel well. This medicine helps to prevent chest pain in the future. If you stop taking it, your risk of chest pain will increase, especially if you stop taking them suddenly. Lifestyle changes such as diet, exercise, and not smoking may help this medication work better.

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 effects include headache, flushing, upper respiratory tract infection, abdominal pain, allergic reaction, chest pain, and diarrhea. If these symptoms bother you or do not go away, your doctor may suggest ways of preventing or reducing them. Some can be reduced by taking painkillers, drinking plenty of fluids, and avoiding alcohol.

Before taking this medicine tell your doctor if you have low blood pressure, increased pressure in the eye (glaucoma), kidney disease, or heart failure. Also let your doctor know if you are taking any other medicines as some may affect, or be affected by, this medicine and some may be dangerous to take with it. You should not take any medicine for erectile dysfunction with this medicine. If you are pregnant or breastfeeding, ask your doctor if this medicine is suitable. Your doctor may regularly monitor your blood pressure and heart rate during the treatment with this medicine.

Uses of Isonit Tablet SR

Prevention of Angina (heart-related chest pain)

Benefits of Isonit Tablet SR

In Prevention of Angina (heart-related chest pain)

Isonit 30mg Tablet SR reduces your risk of getting heart-related chest pain (angina attack). It does not treat an angina attack that has already begun and should not be used for this purpose. It works by relaxing and widening blood vessels in the heart. This makes it easier for blood to flow to the heart, so it gets more oxygen. This medicine thus helps to increase your ability to exercise and go about your daily life more easily and confidently. It should be taken regularly to be effective.

Side effects of Isonit Tablet SR

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

Common side effects of Isonit

Headache
Flushing (sense of warmth in the face, ears, neck and trunk)
Upper respiratory tract infection
Abdominal pain
Allergic reaction
Chest pain
Diarrhea

How to use Isonit Tablet SR

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Isonit 30mg Tablet SR may be taken with or without food, but it is better to take it at a fixed time.

How Isonit Tablet SR works

Isonit 30mg Tablet SR is a nitrate. It dilates peripheral arteries and veins. Dilation of the veins promotes peripheral pooling of blood and decreases venous return to the heart, thereby reducing workload of heart. As a result, the heart muscle does not need as much blood and oxygen supply.

Safety advice

Alcohol

UNSAFE

Consuming alcohol while taking Isonit 30mg Tablet SR may cause symptoms such as flushing, increased heart beat, nausea, thirst, chest pain and low blood pressure (Disulfiram reaction).

Pregnancy

CONSULT YOUR DOCTOR

Isonit 30mg Tablet SR may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of Isonit 30mg Tablet SR during breastfeeding is not available. Please consult your doctor.

Driving

UNSAFE

Isonit 30mg Tablet SR may decrease alertness, affect your vision or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

SAFE IF PRESCRIBED

Isonit 30mg Tablet SR is safe to use in patients with kidney disease. No dose adjustment of Isonit 30mg Tablet SR is recommended.
However, talk to your doctor if you have any underlying kidney disease.

Liver

SAFE IF PRESCRIBED

Isonit 30mg Tablet SR is probably safe to use in patients with liver disease. Limited data available suggests that dose adjustment of Isonit 30mg Tablet SR may not be needed in these patients. Please consult your doctor.

What if you forget to take Isonit Tablet SR?

If you miss a dose of Isonit 30mg Tablet SR, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.\n

All substitutes

For informational purposes only. Consult a doctor before taking any medicines.

Isonit 30mg Tablet SR

₹4.85/Tablet SR

Monit 30 SR Tablet

Intas Pharmaceuticals Ltd

₹6.87/tablet sr

42% costlier

Ihd 30mg Tablet SR

Stadmed Pvt Ltd

₹4.68/tablet sr

4% cheaper

Isonit 30 SR Tablet

Tas Med India Pvt Ltd

₹5/tablet sr

3% costlier

Nitrovas 30mg Tablet SR

Veritaz Healthcare Ltd

₹2.59/tablet sr

47% cheaper

Mono 30mg Tablet SR

Biochem Pharmaceutical Industries

₹3.72/tablet sr

23% cheaper

View all substitutes

Quick tips

You have been prescribed Isonit 30mg Tablet SR for the prevention and treatment of heart-related chest pain (angina).
Eat healthy (low-fat, high-fiber, low-sodium diet), quit smoking, increase your physical activity, watch your weight and reduce stress.
Isonit 30mg Tablet SR may cause dizziness or sleepiness. Do not drive or do anything that requires concentration until you know how it affects you.
Do not consume alcohol while taking Isonit 30mg Tablet SR as it may cause increased dizziness.
It may cause headaches which usually go away after a few days of continued treatment. Inform your doctor if it persists.
You may develop tolerance to Isonit 30mg Tablet SR with time, meaning that the same dose may be less effective next time. Follow the prescribed dosing schedule to avoid this.
Stop taking medications (prescribed for erectile dysfunction) like sildenafil or tadalafil while on treatment with Isonit 30mg Tablet SR as it may cause low blood pressure.

Fact Box

Chemical Class

Nitrates

Habit Forming

Therapeutic Class

CARDIAC

Action Class

NO Donors

Patient concerns

What is heart attack? When heart attack coming?

Dr. Nabajit Talukdar

Cardiology

Related to chest pain angina commonly

Chest pain headache vetrigo Angina pain

Dr. Nabajit Talukdar

Cardiology

Get echo n ECG done

User feedback

Patients taking Isonit 30mg Tablet SR

Once A Day

60%

Twice A Day

40%

FAQs

Q. Does Isonit 30mg Tablet SR affect heart rate?

Yes, Isonit 30mg Tablet SR may affect the heart rate. Isonit 30mg Tablet SR causes a decrease in blood pressure. This decrease in blood pressure further causes a decrease in the heart rate (bradycardia). In some cases, it may also cause an increase in the heart rate (tachycardia). Consult your doctor in case you do not feel well after taking this medicine or if you notice a change in your heart rate.

Q. What if I forget to take a dose of Isonit 30mg Tablet SR?

You can take the forgotten dose of Isonit 30mg Tablet SR if you remember it within 12 hours. However, if you remember it after 12 hours of the scheduled time, then skip the missed dose and continue with the next dose.

Q. Can I stop taking Isonit 30mg Tablet SR after sometime?

No, do not stop taking this medicine without talking to your doctor. Stopping it suddenly may increase your chances of having an anginal attack. If you have any concerns regarding Isonit 30mg Tablet SR consult your doctor.

Q. What are the symptoms of an overdose of Isonit 30mg Tablet SR?

Taking more than the recommended dose of Isonit 30mg Tablet SR may cause throbbing headache, reddening of the skin, chills along with sweating, nausea, vomiting, and a fast heartbeat. Seek emergency help and consult your doctor immediately if you take more than the recommended dose of this medicine.

Q. Can Isonit 30mg Tablet SR be taken at night?

Depending upon the dose, your doctor may recommend you to take this medicine once or twice daily. When a single dose is recommended, then it is preferred to be taken in the morning. If taking it twice a day, maintain a gap of 7 hours between the two doses. This helps decrease the chances of Isonit 30mg Tablet SR becoming ineffective (tolerance) after some time.

Q. Does Isonit 30mg Tablet SR lower BP?

Yes, Isonit 30mg Tablet SR can cause a fall in blood pressure. This medicine widens the blood vessels and decreases the resistance in them, causing a fall in blood pressure. This fall in blood pressure may in turn decrease the heartbeat which can lead to angina. This medicine should be avoided in people who already have low blood pressure. Discuss with your doctor if you have any concerns.

Q. Can I take sildenafil while taking Isonit 30mg Tablet SR?

No, you should not take sildenafil along with Isonit 30mg Tablet SR. Both these medicines lower blood pressure and belong to the same class. Taking these two medicines together may cause a severe decrease in blood pressure, fainting, and even a heart attack. Along with this, also avoid taking other medicines belonging to similar classes such as vardenafil and tadalafil.

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Disclaimer:

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

References

Opie LH, Horowitz JD. Nitrates and Newer Antianginals β-Blocking Agents. In: Opie LH, Gersh BJ, editors. Drugs for the Heart. 8th ed. Philadelphia, Pennsylvania: Elsevier Saunders; 2013. p. 47.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. p. 744.
Drugs.com. Isosorbide mononitrate Pregnancy and Breastfeeding Warnings. [Accessed 19 Mar. 2019] (online) Available from:
Central Drugs Standard Control Organisation (CDSCO). [Accessed 19 Mar. 2019] (online) Available from:
Central Drugs Standard Control Organisation. Isosorbide Mononitrate. [Accessed 05 Jul. 2023]. (online) Available from:
National Health Services. Isosorbide mononitrate and isosorbide dinitrate. [last Reviewed: 1 Jul. 2021]. [Accessed 05 Jul. 2023]. (online) Available from:
Isosorbide mononitrate tablet [Prescribing Information]. Dupnitsa, Bulgaria: Balkanpharma - Dupnitsa AD; 2022. [Accessed 05 Jul. 2023]. (online) Available from:

Marketer details

Name: Johnlee Pharmaceuticals Pvt Ltd

Address: 42/44, Babu Genu Road, Shop No. 06, 2nd Floor, Om Shanti Co-op Housing Society, Kalbadevi Road, Mumbai-400002. (India)

Country of origin: India

The list of available options shown with the same composition has been prepared upon the advice of registered medical practitioners, pharmacists affiliated with TATA 1MG. TATA 1MG does not promote any pharmaceutical product of any particular company, and all recommendations are based on the medical opinion, advisories from specialist medical and pharmaceutical professionals.