What viagra used for

Prolonged erection greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of Viagra.Some people may also have ringing in their ears (tinnitus) or dizziness.Sexual function data were also recorded by patients in a daily diary.Across all trials, Viagra improved the erections of 43% of radical prostatectomy patients compared to 15% on placebo.

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The safety and efficacy of combinations of Viagra with other PDE5 Inhibitors, including REVATIO or other pulmonary arterial hypertension (PAH) treatments containing sildenafil, or other treatments for erectile dysfunction have not been studied.An evaluation of visual function at doses up to twice the maximum recommended dose revealed no effects of Viagra on visual acuity, intraocular pressure, or pupillometry.

Similar values for pharmacokinetic parameters were seen in normal volunteers and in the patient population, using a population pharmacokinetic approach.Viagra can be used for its treatment according to the prescription of doctor.All Consumer Professional Pill ID Interactions News FDA Alerts Approvals Pipeline Clinical Trials Care Notes Encyclopedia Dictionary Natural Products.Similar effects on blood pressure were noted with 25 mg, 50 mg and 100 mg of Viagra, therefore the effects are not related to dose or plasma levels within this dosage range.

At the same time, on-treatment function was better in treated patients who were less impaired at baseline.Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products.

Stronger CYP3A4 inhibitors such as ketoconazole or itraconazole could be expected to have greater effects than seen with saquinavir.Viagra was evaluated primarily at doses of 25 mg, 50 mg and 100 mg in 21 randomized, double-blind, placebo-controlled trials of up to 6 months in duration, using a variety of study designs (fixed dose, titration, parallel, crossover).See how Viagra fixes erectile dysfunction, what causes the dysfunction and known side effects of Viagra.Physicians should warn patients that prolonged erections greater than 4 hours and priapism (painful erections greater than 6 hours in duration) have been reported infrequently since market approval of Viagra.The mean profiles of the change from baseline in standing systolic blood pressure in subjects treated with doxazosin in combination with 25 mg Viagra or matching placebo are shown in Figure 2.Many of these events were reported to occur during or shortly after sexual activity, and a few were reported to occur shortly after the use of Viagra without sexual activity.

This Patient Information leaflet summarizes the most important information about Viagra.Information about the drug sildenafil (Viagra) prescribed for the treatment of impotence (erectile dysfunction, ED) and pulmonary arterial hypertension.Sudden vision loss in one or both eyes can be a sign of a serious eye problem called non-arteritic anterior ischemic optic neuropathy (NAION).At doses above the recommended dose range, adverse reactions were similar to those detailed in Table 1 below but generally were reported more frequently.

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Efficacy Results in Subpopulations in Controlled Clinical Studies.Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.Viagra is supplied as blue, film-coated, rounded-diamond-shaped tablets containing sildenafil citrate equivalent to 25 mg, 50 mg, or 100 mg of sildenafil.

Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure.However, there are no controlled clinical data on the safety or efficacy of Viagra in patients with sickle cell or related anemias.Tests show the sex pill eases sciatica, a painful condition which affects a million UK men and 400,000.Therefore, inhibitors of these isoenzymes may reduce sildenafil clearance and inducers of these isoenzymes may increase sildenafil clearance.These highlights do not include all the information needed to use VIAGRA safely and effectively.

Viagra Uses - Erectile Dysfunction Home Page

Effect of Viagra and Placebo on Maintenance of Erection by Baseline Score.Patients should be stable on alpha-blocker therapy prior to initiating a PDE5 inhibitor.A sudden drop in blood pressure can cause you to feel dizzy, faint, or have a heart attack or stroke.The mean profiles of the change from baseline in standing systolic blood pressure in subjects treated with doxazosin in combination with 50 mg Viagra or matching placebo are shown in Figure 3.

The patient addressed both questions at the final visit for the last 4 weeks of the study.Individuals who have already experienced NAION are at increased risk of NAION recurrence.The major circulating metabolite results from N-desmethylation of sildenafil, and is itself further metabolized.

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In the third study, a single oral dose of Viagra 100 mg or matching placebo was administered in a 3-period crossover design to 20 generally healthy males with BPH.No significant interactions were shown with tolbutamide (250 mg) or warfarin (40 mg), both of which are metabolized by CYP2C9.

In the nonpregnant rat the AUC at this dose was about 20 times human AUC.Metabolic and Nutritional: thirst, edema, gout, unstable diabetes, hyperglycemia, peripheral edema, hyperuricemia, hypoglycemic reaction, hypernatremia.Sildenafil at steady state, at a dose not approved for the treatment of erectile dysfunction (80 mg t.i.d.) resulted in a 50% increase in AUC and a 42% increase in C max of bosentan (125 mg b.i.d.).Patients with cardiac failure or coronary artery disease causing unstable angina.

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