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All PDE-5 inhibitors have demonstrated excellent efficacy in general and in specific populations (eg, men with diabetes mellitus or those who have undergone radical prostatectomy). Viagra, at 84%, is slightly more effective than Levitra at 80% and Cialis at 81%. dolor de sinusitis, dolor de garganta; o side effects of viagra Tadalafil por lo general se toma solamente una vez al día. Siga todas las instrucciones en la etiqueta de su prescripción. No tome esta medicina en cantidades mayores o menores, o por más tiempo de lo recomendado.Nausea 2% 3% 3% 1%

72 users found this comment helpful. Did you? Yes No Report as inappropriate Switching from one of the oral medicines to another may be tried before proceeding to a more invasive or costlier treatment. However, there are few studies that show any one of the drugs being significantly more effective than another.Three studies were conducted in men to assess the potential effect on sperm characteristics of tadalafil 10 mg (one 6 month study) and 20 mg (one 6 month and one 9 month study) administered daily. There were no adverse effects on sperm morphology or sperm motility in any of the three studies. In the study of 10 mg tadalafil for 6 months and the study of 20 mg tadalafil for 9 months, results showed a decrease in mean sperm concentrations relative to placebo, although these differences were not clinically meaningful. This effect was not seen in the study of 20 mg tadalafil taken for 6 months. In addition there was no adverse effect on mean concentrations of reproductive hormones, testosterone, luteinizing hormone or follicle stimulating hormone with either 10 or 20 mg of tadalafil compared to placebo.

Comments: The incremental benefit of this drug decreases from 4 weeks until 26 weeks. The incremental benefit of this drug beyond 26 weeks is unknown. what happens when you take viagra This leaflet was revised in April 2015.

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How should this medicine be used? levitra drug interactions blood in the urineIn the 404 patients who had both ED and BPH at baseline, changes in erectile function were assessed as key secondary endpoints using the EF domain of the IIEF questionnaire. Cialis with finasteride (N=203) was compared to placebo with finasteride (N=201). A statistically significant improvement from baseline (Cialis/finasteride 13.7, placebo/finasteride 15.1) was observed at week 4 (Cialis/finasteride 3.7, placebo/finasteride -1.1; p<.001), week 12 (Cialis/finasteride 4.7, placebo/finasteride 0.6; p<.001), and week 26 (Cialis/finasteride 4.7, placebo/finasteride 0.0; p<.001).?if you are taking sildenafil to treat erectile dysfunction, tell your doctor if you have ever been advised by a healthcare professional to avoid sexual activity for medical reasons or if you have ever experienced chest pain during sexual activity. Sexual activity may be a strain on your heart, especially if you have heart disease. If you experience chest pain, dizziness, or nausea during sexual activity, call your doctor immediately and avoid sexual activity until your doctor tells you otherwise. dryness or soreness of the throat

tenderness in the stomach areaEffects of Viagra on Blood Pressure: Single oral doses of sildenafil (100 mg) administered to healthy volunteers produced decreases in sitting blood pressure (mean maximum decrease in systolic/diastolic blood pressure of 8.3/5.3 mmHg). The decrease in sitting blood pressure was most notable approximately 1–2 hours after dosing, and was not different than placebo at 8 hours. 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. Larger effects were recorded among patients receiving concomitant nitrates [see Contraindications (4.1)].