Quick Overview
Sildenafil (Viagra) is a PDE5 inhibitor used for erectile dysfunction. It improves blood flow during sexual stimulation and is typically taken as needed before activity.
- Onset: 30–60 minutes
- Duration: 4–6 hours
- Standard dose: 50mg (adjustable 25–100mg)
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Frequently Asked Questions
Sildenafil is used to treat erectile dysfunction by increasing blood flow to the penis during sexual stimulation.
It usually starts working within 30–60 minutes after taking it.
Sildenafil is generally taken as needed, not daily. Daily use is usually not recommended.
Avoid nitrates, excessive alcohol, and high-fat meals that may delay onset.
Sildenafil is safe for most men when prescribed by a doctor, but it is not suitable for people taking nitrates or with certain heart conditions.
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