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Viagra (sildenafil) can help men who suffer with erection problems (erectile dysfunction), also called impotence.
Sildenafil citrate relaxes muscles within the penis and thus allows increased blood flow into the penis, necessary to achieve and maintain an erection.
Erection problems or erectile dysfunction is caused by both psychological and physical factors. It is thought that in 75% of cases there is a physical factor involved. Viagra can help in many cases either on its own or with other approaches.
Sildenafil works by helping the blood vessels to the penis to let more blood flow. This helps to create and keep an erection. This increased blood flow is achieved by relaxing the blood vessels that supply blood to the penis.
It is estimated that only 10% of men who suffer with frequent and long-standing erection problems (erectile dysfunction) actually seek medical assistance. This is remarkable since effective treatments like Viagra are available for many men that can really help.
How should I take generic Viagra?
Generally, it is taken 1 hour before sexual activity.
Taking Sildenafil Citrate after eating a high-fat meal may cause the medication to take a little longer to start working.
In this case of taking sildenafil, the rate of absorption is decreased and achievement of the maximal concentration occurs on one hour later.
By blocking an enzyme called phosphodiesterase-5 (PDE5) which destroys the cGMP sildenafil (Viagra) averts the destruction of cGMP and allows cGMP to accumulate and persist longer.
What should I know before taking Viagra?
Do not take Viagra, Sildenafil Citrate if you are using a nitrate drug for chest pain or heart problems.
Do not take Sildenafil Citrate more than once a day.
Grapefruit and grapefruit juice may interact with Sildenafil Citrate. The interaction could lead to potentially adverse effects.
Before using this drug, tell your doctor your medical history, including: drug allergies, penis conditions such as fibrosis, history of prolonged erection, blood system cancers, eye problems, kidney or liver disease, active stomach ulcers, heart disease, stroke, very high or low blood pressure.
What Side Effects May Occur?
Most usual adverse conditions are: headache, flushing, indigestion, stuffy or runny nose, upset stomach, diarrhea. Less met adverse conditions which can happen are temporary problems with vision, eyes sensitive to sunlight and blurred vision.
Very unlikely but report promptly: chest pain, fainting, foot or ankle swelling. If you experience a painful or prolonged erection (lasting longer than 4 hours), stop using this drug and seek immediate medical attention.