Here’s what you need to know before taking Avana 100 mg (avanafil) for erectile dysfunction (ED) — in about 200 words:

1. What It Is & How It Works
Avana 100 mg is a PDE‑5 inhibitor used to treat ED. It helps relax blood vessels and increase blood flow to the penis, but only works with sexual stimulation; it won’t cause an erection on its own. The usual starting dose is one tablet about 15–30 minutes before sex, and you shouldn’t take more than one dose in 24 hours.

2. Medical Conditions & Interactions
Tell your doctor about your full medical history — especially heart problems, blood pressure issues, eye disorders, kidney/liver disease, and any other drugs you take (including nitrates for chest pain). Taking avanafil with nitrates, certain blood pressure meds, or some other treatments can cause dangerously low blood pressure.

3. Side Effects & Risks
Common effects include headache, flushing, nasal congestion, back pain, dizziness. Rare but serious risks include prolonged erection (priapism), sudden vision or hearing loss, or severe hypotension — seek immediate medical help if these occur.

4. Practical Tips & Warnings
Avoid excess alcohol (can worsen side effects) and do not share this medicine with others. It’s only for adult men with a prescription — not for women or children.

If you have specific health conditions or questions about avanafil, consult your healthcare provider before use.