VIAGRA has sildenafil, which is similar medication present in A further drug known as REVATIO. REVATIO is utilised to treat a rare disease named pulmonary arterial hypertension (PAH).The commonest side effects of VIAGRA: headache; flushing; upset tummy; abnormal eyesight, for example modifications in coloration vision (for example using a blue colo

But If the indicators are serious and you think that you’re aquiring a health-related emergency, quickly phone 911 or your local emergency number.The exact cost you buy any drug will rely on your insurance system, For those who have one, and also your pharmacy.unexpected eyesight reduction in one or the two eyes. Sudden eyesight loss in one or eq