Sildenafil (Viagra) is a phosphodiesterase-5 (PDE-5) inhibitor that is commonly prescribed to treat sexual dysfunction in men, specifically impotence or erectile dysfunction (ED). PDE-5 inhibitors enhance nitric oxide effects, which increases blood flow and allows firm erections. Although sildenafil is safe and effective in most men with mild to moderate ED, key considerations are important to remember. Do you know important contraindications, adverse effects, and signs of overuse and abuse? Test your knowledge of sildenafil with this short quiz.
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Cite this: Mary L. Windle. Fast Five Quiz: Sildenafil (Viagra) - Medscape - Aug 04, 2021.