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Prescription requiredMicro LabsCardiac medicine
Nitrofix SR 30 mg
Isosorbide Mononitrate
₹54MRP ₹575% offIn stock
Order on WhatsAppDelivered across India, usually 7–11 days after the order is confirmed. ₹49 delivery, free above ₹999.
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Nitrofix SR 30 mg is used for this medicine is used in the treatment of heart conditions, angina and irregular heartbeat.
Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated October 2026
Licensed pharmacyPharmacist-verified orderDelivered across India
Key details
Salt: Isosorbide Mononitrate
Available variants: 30 mg 10`S
Best price: ₹54
MRP: ₹57
Prescription: Required
Manufacturer: MICRO LABS
Ordering notes
Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy
Composition of Nitrofix SR 30 mg
Nitrofix SR 30 mg contains Isosorbide Mononitrate. It belongs to the Cardiovascular agent class of medicines.
Uses of Nitrofix SR 30 mg
- Heart conditions
- Angina
- Irregular heartbeat
Benefits of Nitrofix SR 30 mg
- In Heart conditions
- Nitrofix SR supports the heart's rhythm, blood supply or pumping strength, depending on the condition it was prescribed for. Taken regularly, it reduces symptoms and lowers the chance of a hospital admission.
- In Angina
- Nitrofix SR improves the blood supply to the heart muscle or reduces its workload, so chest pain comes on less often and you can do more before it starts.
- In Irregular heartbeat
- Nitrofix SR helps the heart keep a regular rhythm, easing palpitations and the breathlessness or light-headedness that an uneven heartbeat causes.
How Nitrofix SR 30 mg works
Isosorbide Mononitrate supports the work of the heart and the circulation.
How to take Nitrofix SR 30 mg
Use this medicine as your doctor has directed. Follow the dose and the duration written on your prescription.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Missed dose and overdose
If you miss a dose
Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.
If you take too much
An overdose of this medicine can seriously disturb the heart's rhythm and blood pressure. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Side effects of Nitrofix SR 30 mg
Most side effects of Nitrofix SR are mild and settle as the body gets used to the medicine. The ones reported most often are:
- Dizziness
- Headache
- Tiredness
- Nausea
- Palpitations
Stop the medicine and get help at once for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
Safety advice for Nitrofix SR 30 mg
- AlcoholCAUTION
- Alcohol may worsen the side effects of this medicine. Limit it.
- PregnancyCONSULT YOUR DOCTOR
- Consult your doctor before using this in pregnancy.
- Breast feedingCONSULT YOUR DOCTOR
- Consult your doctor before using this while breastfeeding.
- DrivingCAUTION
- May cause drowsiness or affect your concentration. Do not drive until you know how it affects you.
- KidneyCAUTION
- Use with caution if you have kidney disease. Your doctor may adjust the dose or monitor your kidney function.
- LiverCAUTION
- Use with caution if you have liver disease. Your doctor may adjust the dose or monitor your liver function.
Warnings and precautions
Do not stop or change the dose of a heart medicine on your own. Report fainting, a very slow or very fast pulse, or new breathlessness. Keep every follow-up appointment — most of these medicines need periodic blood tests or an ECG.
Do not take Nitrofix SR if
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Your doctor will check that this is suitable for your particular heart condition.
Interactions with other medicines
Heart medicines interact widely. Tell your doctor and pharmacist about everything you take, including herbal products.
How to store Nitrofix SR 30 mg
Store below 30°C in the original pack, away from direct sunlight and moisture. Keep out of the reach of children.
Quick tips for Nitrofix SR 30 mg
- Take it at the same time each day and do not miss doses.
- Keep an up-to-date list of your medicines with you.
Related lab tests
People taking Nitrofix SR are often asked to check these from time to time. Your doctor decides which and how often.
Manufacturer and class
- Manufacturer:
- MICRO LABS
- Therapeutic class:
- Cardiac medicine
- Drug class:
- Cardiovascular agent
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Nitrofix SR 30 mg FAQs
What is Nitrofix SR 30 mg used for?
Nitrofix SR 30 mg is commonly used for heart conditions, angina and irregular heartbeat. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What are the benefits of Nitrofix SR 30 mg?
Heart conditions: Nitrofix SR supports the heart's rhythm, blood supply or pumping strength, depending on the condition it was prescribed for. Taken regularly, it reduces symptoms and lowers the chance of a hospital admission. It is also used for angina, irregular heartbeat.
What is the salt in Nitrofix SR 30 mg?
Nitrofix SR 30 mg contains Isosorbide Mononitrate. If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Nitrofix SR 30 mg?
Use this medicine as your doctor has directed. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Nitrofix SR 30 mg work?
Isosorbide Mononitrate supports the work of the heart and the circulation.
Is Nitrofix SR 30 mg a prescription medicine?
Yes. Nitrofix SR 30 mg is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Nitrofix SR 30 mg?
The side effects reported most often with Nitrofix SR are Dizziness, Headache, Tiredness, Nausea, Palpitations. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Nitrofix SR 30 mg be taken during pregnancy?
Consult your doctor before taking Nitrofix SR 30 mg in pregnancy. Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Nitrofix SR.
Can I drink alcohol while taking Nitrofix SR 30 mg?
Limit alcohol while taking Nitrofix SR 30 mg; it can worsen the side effects.
What if I miss a dose of Nitrofix SR 30 mg?
Take it as soon as you remember.
Is Nitrofix SR 30 mg habit forming?
No. Nitrofix SR 30 mg is not known to be habit forming when taken as prescribed.
How much does Nitrofix SR 30 mg cost on PingMeDoc Pharmacy?
Nitrofix SR 30 mg starts at ₹54 (MRP ₹57) on PingMeDoc Pharmacy. Available in 30 mg 10`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Nitrofix SR 30 mg?
Nitrofix SR 30 mg is manufactured by MICRO LABS. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Nitrofix SR 30 mg delivered?
Nitrofix SR 30 mg is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.
Nitrofix SR 30 mg, Quick facts
- Salt
- Isosorbide Mononitrate
- Best price
- ₹54
- MRP
- ₹57
- Prescription
- Required (Rx)
- Brand
- MICRO LABS
- Manufacturer
- MICRO LABS
- Therapeutic class
- Cardiac medicine
- Drug class
- Cardiovascular agent
- Habit forming
- No
- Variants
- 30 mg 10`S
- Delivery
- Standard across India
References
Compiled from the manufacturer's prescribing information and the sources below, and reviewed by a registered pharmacist. It does not replace your own doctor's advice.
- PingMeDoc clinical monograph library — compiled from Indian package inserts, the Indian Pharmacopoeia
- CDSCO schedules and standard pharmacology references. Reviewed for patient readability. This is general information, not a substitute for your doctor's advice.
- Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
- National List of Essential Medicines (NLEM) 2022, Government of India.
- Manufacturer's package insert / prescribing information for Nitrofix SR 30 mg.
- World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.
Next steps
Safety disclaimer
Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.