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Sildenafil Guide

Learn about sildenafil dosage, duration, side effects, food interactions, alcohol use, and how sildenafil works for erectile dysfunction.

What Is Sildenafil?

Sildenafil is a PDE5 inhibitor used to treat erectile dysfunction (ED). It works by increasing blood flow during sexual stimulation.

Sildenafil is the active ingredient in Viagra and is one of the most commonly prescribed ED medications worldwide.

Sildenafil Overview: Sildenafil usually starts working within 30–60 minutes and its effects commonly last about 4–6 hours.

Sildenafil Information Center

Explore detailed sildenafil guides covering dosage, side effects, duration, food interactions, alcohol use, and daily sildenafil treatment.

Sildenafil Quick Facts

Category Sildenafil Information
Medication Class PDE5 inhibitor
Common Brand Viagra
Typical Onset 30–60 minutes
Typical Duration 4–6 hours
Daily Use Option Sometimes prescribed off-label
Food Interaction Heavy meals may delay absorption

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Sildenafil FAQ

Sildenafil effects commonly last about 4–6 hours.

Sildenafil commonly starts working within 30–60 minutes.

Some patients may use sildenafil daily under medical supervision.

Heavy or high-fat meals may slow sildenafil absorption.

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