Descriptions Sildenafil is used to treat men who have erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called .They enhance the effects of a chemical the body makes that relaxes muscles in the penis, called nitric oxide. What special precautions should I follow? You can take this medicine with or without food 30 minutes before sex, depending on the dose. This boosts blood flow and helps you get an erection from sexual activity. Sildenafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus HIV. If you are taking sildenafil for erectile dysfunction, you are unlikely to miss a dose since this medication is taken as needed, not on a regular dosing schedule.The four main medicines taken by mouth for erectile dysfunction are: Avanafil (Stendra). Sildenafil (Viagra). Talafil (Cialis). Vardenafil. These medicines are called . Sildenafil (Viagra) is used to treat erectile dysfunction (impotence; inability to get or keep an erection) in men. Sildenafil (Liqrev, Revatio) is used to improve the ability to exercise in . Descriptions Sildenafil is used to treat men who have erectile dysfunction (also called sexual impotence). Sildenafil belongs to a group of medicines called .The body takes longer to absorb it after a high-fat meal or alcohol. What side effects can this medication cause? Sildenafil usually should not be taken more than once every 24 hours. Its effects often last for 4 to 5 hours. Do not start these medications while taking sildenafil without discussing it with your healthcare provider. This is a type of high blood pressure that occurs between the heart and the lungs.
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