Erectile Dysfunction (ED) is the inability to get or keep an erection firm enough to have sexualintercourse. It’s also sometimes referred to as impotence. Occasional ED isn’t uncommon. Many men experience it during times of stress.
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Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, sildenafil works by increasing blood flow to the penis to help a man get and keep an erection.
To treat erectile dysfunction-ED, take this drug by mouth as directed by your doctor, usually as needed. Take sildenafil at least 30 minutes, but no more than 4 hours, before sexual activity (1 hour before is the most effective). Do not take more than once daily.
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