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Tablet

Niptro-SR 2.6 mg Tablet

Generic: Glyceryl Trinitrate (GTN / Nitroglycerin)

Manufacturer: Bexter Pharmaceuticals

Therapeutic class: Nitrate Vasodilator (Anti-anginal)

What is Niptro-SR used for?

Niptro-SR (Tablet) contains Glyceryl Trinitrate (GTN / Nitroglycerin) 2.6 mg and is made by Bexter Pharmaceuticals. Therapeutic class: Nitrate Vasodilator (Anti-anginal).

What is Niptro-SR?

Niptro-SR 2.6 mg tablet contains glyceryl trinitrate, also known as nitroglycerin, a nitrate vasodilator. It is used in heart-related chest pain, helping prevent or manage angina caused by reduced blood flow to the heart.

Niptro-SR 2.6 mg tablet is a medicine from Bexter Pharmaceuticals that contains Glyceryl Trinitrate (GTN / Nitroglycerin), a fast-acting nitrate used to relieve and prevent angina — the tight, squeezing chest pain that occurs when the heart muscle does not get enough blood. Sublingual (under-the-tongue) forms act within minutes; longer-acting forms are used for prevention.

Glyceryl trinitrate is converted in the body to nitric oxide, a natural signal that relaxes the muscle in blood vessel walls. Veins widen first, so less blood returns to the heart and its workload drops; the coronary arteries that feed the heart muscle also widen. The heart then needs less oxygen while receiving more — which is why the chest pain eases within minutes of a sublingual dose.

Indications

  • Acute angina attack — rapid relief of chest pain (sublingual tablet or spray)
  • Prevention before exertion — taken minutes before activity known to trigger chest pain, such as climbing stairs
  • Angina prophylaxis — longer-acting tablets or patches to reduce attack frequency
  • Hospital uses — heart attack, acute heart failure and blood pressure control during surgery (infusion form)
  • Anal fissure — special ointment form, as prescribed

Dosage & Administration

ChamberBD shows dosing only from the approved product label, with its source named, and no label is on file for Niptro-SR 2.6 mg Tablet. Use the dose your doctor prescribed and the instructions in the pack leaflet.

Side Effects

Most side effects come from blood vessels widening and are strongest in the first doses:

  • Throbbing headache — very common; usually eases with continued use and responds to paracetamol
  • Flushing, warmth of the face and neck
  • Dizziness, light-headedness or faintness, especially on standing
  • Fast heartbeat (palpitations)
  • Low blood pressure; nausea
  • Burning or tingling under the tongue (sublingual forms) — a sign the tablet is active
  • Seek help if: fainting, severe persistent dizziness, blurred vision, or chest pain that does not settle

Precautions & Warnings

  • Always sit down before taking a sublingual dose — the sudden pressure drop can cause fainting if you are standing.
  • Carry Niptro-SR with you at all times; an angina attack cannot be scheduled.
  • Do not drink alcohol around dosing — it multiplies the pressure drop.
  • Rise slowly afterwards; avoid driving until dizziness passes.
  • Tell your doctor if attacks become more frequent, occur at rest or wake you at night — this is unstable angina and needs urgent review.
  • With regular long-acting nitrates, the body develops tolerance — your doctor will plan a daily nitrate-free interval; do not add extra doses yourself.
  • Check the expiry and replace sublingual tablets as advised once the bottle is opened — old tablets lose potency.

Drug Interactions

  • Erectile dysfunction medicines (sildenafil, tadalafil, vardenafil): absolutely must not be combined — together they can cause a catastrophic, life-threatening fall in blood pressure. A gap of at least 24 hours (sildenafil) or 48 hours (tadalafil) is required, decided by a doctor
  • Riociguat: similarly contraindicated
  • Other blood pressure medicines, beta-blockers, calcium channel blockers, diuretics: additive pressure drop
  • Alcohol: increases dizziness and hypotension
  • Ergotamine (migraine): nitrates can oppose it and ergotamine can worsen angina
  • Heparin (infusion setting): effect may be reduced

Tell your doctor about all medicines you use — especially any medicine for erection problems.

Contraindications

  • Allergy to glyceryl trinitrate or other nitrates
  • Use of sildenafil, tadalafil, vardenafil or riociguat within the prohibited interval
  • Severe low blood pressure or shock; severe anaemia
  • Raised pressure inside the skull (head injury, brain haemorrhage)
  • Hypertrophic obstructive cardiomyopathy, severe aortic stenosis, constrictive pericarditis (specialist assessment needed)
  • Closed-angle glaucoma

Pregnancy & Lactation

Pregnancy: Glyceryl trinitrate is used in pregnancy only if the doctor judges the benefit outweighs the risk — human data are limited. It is sometimes used in hospital obstetric settings under specialist supervision. Tell your doctor if you are or may be pregnant before using it regularly.

Lactation: It is not known how much passes into breast milk. Occasional sublingual use is unlikely to be a problem, but discuss regular use with your doctor, who will weigh the options and monitor the baby if needed.

Storage Conditions

Storage is critical for this medicine: glyceryl trinitrate evaporates and loses potency easily. Keep sublingual tablets in the original glass container, tightly closed, without cotton wool or other tablets inside, away from heat, light and moisture — not in a car or pocket close to the body for long periods. Store below 25–30°C, replace opened sublingual tablets as advised (often every 8 weeks to 6 months per manufacturer), and keep out of the reach of children. Spray forms last longer — check the label and expiry date.

Frequently Asked Questions

How should I store Niptro-SR so it keeps working?

This medicine evaporates easily, and weak tablets may fail you in an emergency. Keep sublingual tablets in their original tightly-closed glass container — never transfer them to a pill box or plastic bag, never store cotton wool or other tablets in the bottle, and keep it away from heat, light and dampness (not the car dashboard, not a trouser pocket against the body all day). Replace opened tablets as the pack advises, and check the tingling under the tongue — little or no tingling can mean the tablets have lost strength and need replacing. Always carry it with you.

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