About nitroglyce rin
Long-acting nitrate vasodilator
Used for
- Prevention of angina (chest pain) due to coronary artery disease
Usual adult dose
Usually one patch daily, worn for 12–14 hours, then removed for 10–12 hours. Dose is individualized.
Common side effects
- Headache
- Dizziness or light-headedness
- Flushing
- Skin irritation at the patch site
Important warnings
- Not for sudden angina attacks; use prescribed fast-acting medicine instead.
- Do not combine with sildenafil, tadalafil, vardenafil, or riociguat; blood pressure may drop dangerously.
- May cause fainting, especially when starting or increasing the dose.
- A daily patch-free interval helps prevent reduced effectiveness.
Pregnancy
Use only when clearly needed; pregnancy safety information is limited.
Breastfeeding
Use caution; it is not known whether nitroglycerin passes into breast milk.
Interactions
- Sildenafil, tadalafil, vardenafil, and riociguat can cause dangerous low blood pressure.
- Other blood-pressure-lowering medicines may increase dizziness or fainting.
- Alcohol may worsen low blood pressure and dizziness.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.