The most common side-effects associated with the use of sildenafil as reported by the study participants were dizziness and headache. They gave the final approval of the manuscript to be published and agreed to be accountable for all aspects of the work. In some patients, the use of VIAGRA with alpha-blockers can lead to a drop in blood pressure or to fainting medicines called HIV protease inhibitors, such as ritonavir Norvir , indinavir sulfate Crixivan , saquinavir Fortovase or Invirase , or atazanavir sulfate Reyataz some types of oral antifungal medicines, such as ketoconazole Nizoral and itraconazole Sporanox some types of antibiotics, such as clarithromycin Biaxin , telithromycin Ketek , or erythromycin other medicines that treat high blood pressure other medicines or treatments for ED VIAGRA contains sildenafil, which is the same medicine found in another drug called REVATIO. Unlicensed use Unlicensed use For sildenafil Sildenafil is used for the treatment of digital ulcer, E but is not licensed for this indication. Especially tell your healthcare provider if you take any of the following: medicines called nitrates medicines called guanylate cyclase stimulators such as Adempas riociguat medicines called alpha-blockers, such as Hytrin terazosin HCl , Flomax tamsulosin HCl , Cardura doxazosin mesylate , Minipress prazosin HCl , Uroxatral alfuzosin HCl , Jalyn dutasteride and tamsulosin HCl , or Rapaflo silodosin. Based on a projection from the National Census conducted in , its population was estimated to be around , with the male to female ratio estimated to be around 1.Viagra cost As with all medications, the cost of Viagra can vary. Factors that may affect the price you’ll pay include: your treatment plan your insurance coverage the pharmacy you . Sildenafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Learn more about Viagra oral. 1. This is a generic drug. Even if this . Rarely, certain side effects like abnormal heartbeat, heart attack, stroke, bleeding in the lungs, and very bad high blood pressure have happened with this medicine (sildenafil tablets). Sometimes, this has been deadly. Most of the time, these problems happened in people who had heart problems before taking this medicine (sildenafil .