Overdosing on Viagra, or other brands of the drug sildenafil, can cause prolonged erections, known as priapism, nausea, chest pains and irregular heartbeat. If priapism is not treated within 24 hours the penis may become permanently damaged, leading to difficulties achieving an erection in future.
What do they do if you take too much Viagra?
Viagra Overdose Risks: What Happens When You Take Too Many Blue Pills. Viagra affects the penis and other parts of the body. Too much can cause a priapism, an uncomfortable and disproportionately large erection that lasts for more than four hours. A prolonged erection can lead to permanent damage to the penile tissues.