Men who struggle to attain and sustain an erection while making love to their female companion can rely on Viagra Pills to enjoy intercourse.  This medication increases the vigour and vitality of men and enables them to perform confidently behind closed doors. Viagra boosts the flow of blood to the male genitalia for a strong and better erection and offers men adequate time to indulge in numerous lovemaking sessions. Prepared with a vital component called Sildenafil Citrate, it becomes effective within half an hour after use and remains vibrant in the body for the next 4-6 hours. Ever since its launch in the year 1998, it has been able to treat the erection problems of millions of men across the world.  It is vital to seek the opinion of a physician prior to its use. This pill is not conducive for men who suffer from hypertension, complications of heart and kidney disease. Use of grapefruit juice, alcohol and other recreational drugs is not recommended during its use. Some of the common side effects include chest pain, dizziness and nausea. Adverse side effects such as loss of vision or hearing and prolonged erection must be immediately brought to the notice of a physician.