Angiplat
✅ Relieves chest pain
✅ Dilates blood vessels
✅ Treats angina attacks
✅ Improves blood flow
✅ Prevents heart pain
Angiplat contains Nitroglycerin.
✓ Medically reviewed by Morgan Ellis — Pharmacy Researcher · 8 years experience · Last reviewed: May 2026
⚡ Quick Answer — What is Angiplat?
Angiplat is a nitroglycerin (glyceryl trinitrate) 2.5 mg sustained-release capsule, used for the prophylaxis (prevention) of chronic stable angina pectoris. A usual starting dose is one capsule two to three times a day with an 8–12 hour nitrate-free interval overnight. Angiplat is not suitable for aborting an acute angina attack — use sublingual nitroglycerin or isosorbide dinitrate for that purpose.
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Angiplat 2.5 mg is an oral, sustained-release (SR) nitroglycerin capsule manufactured for daily use in patients with chronic stable angina pectoris. Each capsule contains 2.5 mg of glyceryl trinitrate (nitroglycerin) in a controlled-release matrix that slowly releases the active drug over 6–8 hours. This extended release profile allows twice- or thrice-daily dosing rather than the very short action of sublingual nitroglycerin.
Angiplat is widely prescribed in cardiology practice as part of a long-term anti-anginal regimen — usually alongside a beta-blocker (atenolol, metoprolol, bisoprolol) or a calcium channel blocker (amlodipine, diltiazem), plus aspirin and a statin for secondary prevention of coronary events. It reduces the number and severity of angina episodes, improves exercise tolerance, and can reduce the need for short-acting rescue medication during the day.
What Is Angiplat Used For?
Angiplat is indicated for:
- Long-term prophylaxis of chronic stable angina — reducing the frequency of chest pain episodes
- Effort-induced angina — pre-medication before predictable strain (walking uphill, climbing stairs)
- Mixed angina (combination of effort and spasm) — as add-on therapy
- Left ventricular failure with angina — reducing preload and ischaemia
Angiplat is not indicated for acute angina attacks. Sustained-release oral nitroglycerin has an onset of 30–45 minutes — too slow to abort a live ischaemic episode. For that indication, use a sublingual nitroglycerin tablet or spray, or a sublingual isosorbide dinitrate 5 mg tablet.
How Do Nitrates Work?
All nitrate medications share the same basic mechanism. Once absorbed, they are enzymatically converted into nitric oxide (NO) inside vascular smooth muscle cells. NO activates guanylate cyclase, raising intracellular cGMP and relaxing the smooth muscle of blood vessels. The clinical effects are:
- Venous dilation (dominant at low doses) — reduces venous return to the heart, lowering preload. This is how nitrates reduce myocardial oxygen demand.
- Arterial dilation (higher doses) — reduces systemic vascular resistance and afterload, further cutting cardiac workload.
- Coronary artery dilation — improves blood flow to ischaemic regions of the heart muscle, especially in coronary spasm.
The net effect is less chest pain, fewer angina episodes, and improved exercise tolerance in patients with stable coronary artery disease.
Nitrate Tolerance — the Critical Dosing Rule
Nitrate tolerance is the single most important concept for any patient on a nitrate. If a nitrate is given around the clock — at steady blood levels for 24 hours a day — the anti-anginal effect fades within 48 to 72 hours. This is a well-documented, reproducible pharmacological phenomenon, not an imaginary effect.
The fix is simple and non-negotiable: every 24-hour cycle must include a nitrate-free interval of at least 8–12 hours, usually overnight. The standard strategies are:
- Asymmetric twice-daily dosing (e.g. 7 a.m. and 3 p.m., nothing after that until the next morning)
- Once-daily sustained-release formulations designed to deliver a low trough
- Removing a transdermal patch after 12–14 hours on the skin
Do not take extra doses “at bedtime” or during the night unless your doctor explicitly prescribes round-the-clock therapy for a specific reason.
Angiplat Dosing
For chronic stable angina in adults:
- Starting dose: 2.5 mg (one capsule) two to three times daily, with meals
- Titration: If angina remains uncontrolled after 1–2 weeks, doctors may increase to 5 mg (two capsules) twice or three times daily, or switch to Angispan-TR 6.5 mg
- Nitrate-free interval: Leave at least 8–12 hours between the last dose of one day and the first dose of the next. The easiest way: take at 7 a.m. and 3 p.m., then nothing until the following morning
- Maximum: 26 mg/day in divided doses (rarely needed)
Capsules should be swallowed whole with water; do not crush, chew, or open them — this destroys the sustained-release matrix and causes a rapid burst of nitroglycerin with a bad headache and hypotension.
Missed dose: take it as soon as you remember, unless it is within 3 hours of the next scheduled dose — in that case skip the missed dose. Never double up.
Who Should Not Take Angiplat?
There is one absolute contraindication that every patient must understand before the first dose:
Never combine any nitrate with a PDE5 inhibitor. Sildenafil (Viagra), tadalafil (Cialis), vardenafil (Levitra), and avanafil (Stendra) potentiate the vasodilator effect of nitrates and can cause life-threatening hypotension, collapse, stroke, or myocardial infarction. Wait at least 24 hours after sildenafil/vardenafil and 48 hours after tadalafil before taking any nitrate dose. This applies to all forms — oral, sublingual, transdermal, and spray.
Other important contraindications:
- Severe hypotension or hypovolaemia (systolic BP < 90 mmHg)
- Severe anaemia (nitrates can worsen tissue oxygen delivery)
- Hypertrophic obstructive cardiomyopathy (HOCM) — nitrates can worsen outflow obstruction
- Severe aortic stenosis — risk of syncope
- Raised intracranial pressure or recent head trauma
- Right ventricular infarction — preload is essential, nitrates cut it
- Constrictive pericarditis or cardiac tamponade
- Known hypersensitivity to organic nitrates
- Concomitant soluble guanylate cyclase stimulators (riociguat)
Use with caution in pregnancy (category C) and discuss with a specialist. In breastfeeding, occasional use is generally accepted, but routine therapy should be reviewed with a cardiologist.
Common Side Effects of Angiplat
Most side effects of nitrates are direct extensions of their vasodilator action and tend to settle over the first 1–2 weeks of treatment.
Very common (>10% of patients):
- Headache — throbbing, frontal, often worst in the first few days. Paracetamol is safe. Headache usually fades within 7–14 days as the body adjusts; it is not a sign of overdose.
- Dizziness or light-headedness, especially on standing
- Facial flushing
Common (1–10%):
- Postural hypotension
- Reflex tachycardia (fast heart rate)
- Nausea, occasional vomiting
- Skin rash (more common with the transdermal patch)
Uncommon but important:
- Syncope (fainting) — usually on the first dose, standing up, or after alcohol
- Paradoxical worsening of angina — rare; seek urgent review
- Methaemoglobinaemia — very rare, with sustained high-dose therapy
Stop the medication and contact your doctor urgently if you develop severe or persistent headache that does not settle, fainting episodes, a blistering rash, or blue-tinged lips and skin.
Angiplat vs Other Nitrates
| Product | Molecule | Form | Onset | Role |
|---|---|---|---|---|
| Angiplat 2.5 mg | Nitroglycerin SR | Oral capsule | 30–45 min | Daily prophylaxis |
| Angispan-TR 6.5 mg | Nitroglycerin SR | Oral capsule | 30–60 min | Higher-dose prophylaxis |
| Nitroderm TTS | Nitroglycerin | Transdermal patch | 30–60 min | Once-daily prophylaxis |
| Sorbitrate 5/10 mg | Isosorbide dinitrate | Oral/sublingual | 2–5 min (SL) | Abort attack or prophylaxis |
| Monit 20 mg | Isosorbide mononitrate | Oral tablet | 30–60 min | BID prophylaxis |
Ordering & Delivery
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Medical disclaimer. The information on this page is provided for general education only. It is not a substitute for advice from your own doctor or cardiologist. Nitrates are potent cardiovascular medications with known serious interactions. Talk to a qualified healthcare professional before starting, stopping, or changing therapy, and seek immediate medical attention if chest pain is new, more severe, or lasts longer than 10–15 minutes.
Frequently Asked Questions
Can I use Angiplat to stop an angina attack?
No. Angiplat is a sustained-release preventer with an onset of 30–45 minutes. To abort an angina attack, use sublingual nitroglycerin spray/tablets or sublingual isosorbide dinitrate (Sorbitrate) 5 mg — these act within 2–5 minutes.
Can I take Angiplat with sildenafil or tadalafil?
Absolutely not. Combining any nitrate with a PDE5 inhibitor can cause severe, life-threatening hypotension. Wait at least 24 hours after sildenafil/vardenafil and 48 hours after tadalafil before any nitrate dose.
Why do I get a headache when I take Angiplat?
Headache is the most common nitrate side effect — it reflects cerebral vasodilation. It usually fades within 7–14 days as the body adjusts. Paracetamol is safe to take alongside. If it is intolerable, speak to your doctor about dose reduction.
What happens if I take Angiplat every 6 hours instead of spacing doses out?
You will develop nitrate tolerance within 48–72 hours, and the drug will stop working. Always leave a continuous 8–12 hour nitrate-free interval — usually overnight.
Can I drink alcohol with Angiplat?
Light alcohol (one drink with food) is usually tolerated, but alcohol is itself a vasodilator and can worsen hypotension and dizziness, especially in the first hour after a dose. Avoid heavy drinking entirely.
Can I drive while taking Angiplat?
Once you are stable on Angiplat and headaches/dizziness have settled, driving is usually fine. Avoid driving during the first week, after any dose increase, and if you feel dizzy or light-headed.
What if I miss a dose of Angiplat?
Take it as soon as you remember, unless it is within 3 hours of the next scheduled dose — in that case skip the missed dose. Never double up to catch up.
Can I stop Angiplat if I feel better?
Stopping a long-acting nitrate abruptly can cause rebound coronary vasospasm and worsening angina. Any decision to stop should be a gradual taper under medical supervision.
Do I still need my beta-blocker if I am on Angiplat?
Yes, in most cases. Nitrates and beta-blockers act on different parts of the ischaemia pathway and are often complementary. Do not stop either without checking with your cardiologist.
Is Angiplat the same as sublingual nitroglycerin?
Both contain nitroglycerin, but the formulations are very different. Sublingual tablets dissolve under the tongue and act in 2–5 minutes to abort an attack. Angiplat is a sustained-release oral capsule designed for once- or twice-daily prevention.
How long can I stay on Angiplat?
Many patients take sustained-release nitroglycerin for years as part of their long-term angina regimen, provided the nitrate-free interval is respected. Ongoing review with your cardiologist every 6–12 months is standard.
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| Strength | 2.5 mg |
|---|---|
| Quantity | 25 Capsule/s, 50 Capsule/s, 75 Capsule/s, 150 Capsule/s |
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