Some manpower who take Viagra report an outstandingly rare set of visual modification capable of lasting up to a calendar week , new inquiry find .
Sildenafil citrate , which is sold under the brand name nameViagra , is the most normally used drug to treat erectile dysfunction ( ED ) , a uncouth condition that affects the ability of men to keep an erection house enough for sexual urge , according to theMayo Clinic . The little blue pill works by elaborate blood vessels and relaxing liquid muscle in the penis , making it easy to maintain an hard-on . result typically last between three and five hours .
Viagra has been on the securities industry for more than two decade and when taken right , is generally view as good with few side effects . But when take under certain circumstances , the drug may cause extreme sensitivity to lite , dilated pupil , and intensely colored gamey vision tinged with crimson and green color sightlessness .
That was the case in 17 otherwise healthy male patient who check themselves into Dünyagöz Adana hospital in Turkey . Each man had take sildenafil for the first time and at the in high spirits recommended dose of 100 milligrams , yet none of them had been prescribe the drug by their doctor . handle doctors monitor the patients ’ overall wellness and bear heart test before their ocular symptoms eventually go down 21 mean solar day later . The findings are put out inFrontiers in Neuroscience .
" Many valet de chambre use non - prescription performance - enhancing drugs to help with sexual anxiousness and erectile dysfunction , " said treating physicianDr Cüneyt Karaarslanin astatement . " For the vast majority of men , any side - outcome will be irregular and mild . However , I want to spotlight that pertinacious eye and vision problems may be come across for a lowly numeral of users . "
It could be that such imaginativeness deterioration is the result of an inability to break down and properly eliminate sildenafil from the body , leaving high denseness in the blood stream for longer periods of clock time . Karaaslan adds that first - time user should start convey sildenafil at a lower Cupid’s itch and always at the discretion of their Dr. .
" Although these drug , when used under the control of physicians and at the recommend window pane , provide very crucial sexual and mental financial support , uncontrolled and out or keeping doses should not be used or repeated , " concluded Karaarslan .
