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Therefore, some of them can be used with Viagra, under the supervision of your doctor. Levitra (vardenafil) is similar to Viagra (sildenafil), in that it lasts about five hours; Viagra (sildenafil) lasts about four hours. Erections do not last for four hours, however, a man has the ability to have an erection for up to four hours.

Viagra lowers your blood pressure, as does alcohol. The cause is usually related to a decrease in the blood supply to the penis as well as to injury to the nerves that are responsible for the erection mechanism.

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The patient this may indicate a completion of anterolateral laxity. Before starting the study, the women reported a variety of sexual problems, including lack of libido, difficulty becoming aroused or becoming lubricated, lack of orgasm, or delay in achieving orgasm.

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For further information: //www.everydayhealth.com/erectile-dysfunction/guide/ Q: Does Viagra work for women? Increased side effects can include blood pressure that’s too low. Other drugs may interact with sildenafil, including prescription and over-the-counter medicines, vitamins, and herbal products. The maximum recommended dosing frequency is once per day.

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A: Brand-name prescription drugs are protected under patent. Medications such as Viagra, Levitra, and Cialis are commonly used by diabetics, without any problems. Cardiovascular and Cerebrovascular Serious cardiovascular, cerebrovascular, and vascular events, including myocardial infarction, sudden cardiac death, ventricular arrhythmia, cerebrovascular hemorrhage, transient ischemic attack, hypertension, subarachnoid and intracerebral hemorrhages, and pulmonary hemorrhage have been reported post-marketing in temporal association with the use of VIAGRA. Both sildenafil and the metabolite have terminal half lives of about 4 hours. There were concerns about its efficacy when compared with negative side effects. Stephen Evans, a professor of pharmacoepidemiology at the London School of Hygiene and Tropical Medicine, said the small number of trials with pregnant women had limited the knowledge of medicines in pregnant women. "There have been other studies in this area, both involving preliminary work using animals and using pregnant women, and there was no indication that the treatment was dangerous based on previous research," Professor Evans said. The patient addressed both questions at the final visit for the last 4 weeks of the study.