About avanafil
Phosphodiesterase type 5 inhibitor
Used for
- Treats erectile dysfunction in adult men.
Usual adult dose
Usually 100 mg taken about 15–30 minutes before sexual activity; may adjust to 50–200 mg, no more than once daily.
Common side effects
- Headache
- Flushing
- Nasal congestion
- Dizziness
Important warnings
- Do not use with nitrates or riociguat; blood pressure may drop dangerously.
- Seek urgent care for an erection lasting over four hours or sudden vision or hearing loss.
- Use caution with heart disease, low blood pressure, or medicines that affect avanafil breakdown.
- Sexual activity may be unsuitable for some people with serious heart conditions.
Pregnancy
Not indicated for use in women; pregnancy safety is not established.
Breastfeeding
Not indicated for use in women; breastfeeding safety is not established.
Interactions
- Nitrates and riociguat can cause severe low blood pressure.
- Strong CYP3A4 inhibitors, such as ketoconazole or ritonavir, can greatly increase avanafil levels.
- Alpha-blockers and blood-pressure medicines may increase dizziness or low blood pressure.
- Other erectile dysfunction medicines may increase adverse effects; avoid combining them.
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 It may be incomplete or out of date.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.