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Sildenafil caused small, clinically insignificant reductions in ambulatory BP in active and resting normotensive and hypertensive men. Sep 20, 2018 ... The most common side effects for Viagra are: Heart attack, stroke, irregular heartbeat and death have happened rarely in men taking Viagra. Dec 14, 2021 ... Impact of NIH Research · Science, Health, and Public Trust. You are ... After considering other factors, the top candidate was sildenafil, also ... Viagra acts as a relatively specific vasodilator of the penile circulation that enhances prolonged muscle relaxation/vasodilation by inhibiting the action of ... Apr 17, 2008 ... Addition of sildenafil to yohimbine significantly enhanced the effect of the latter on intromission frequency, intercopulatory interval and the ... Medscape - Pulmonary hypertension, erectile dysfunction-specific dosing for Revatio, Viagra (sildenafil), frequency-based adverse effects, ... A combined effect with nitrate resulted in large and protracted decreases in systemic blood pressure and coronary blood flow in vessels with critical stenosis. Jul 30, 2019 ... The three rivals -- Viagra, Cialis, Levitra and Stendra-- have similar side effects, including headache, facial flushing, nasal congestion ... Common side effects of sildenafil happen in more than 1 in 100 people. If you're taking it for erection problems you're unlikely to get side effects. Nov 22, 2023 ... Cocaine and Viagra, however, can cause serious repercussions. In some instances, the combination has even proved to be deadly. Mixing different ...