Viagra

Viagra (sildenafil) is a drug that works to provide for a stable erection even in most severe cases of male impotence. It’s a prescription phosphodiesterase inhibitor that should be taken exactly as prescribed to provide for best effects. Take Viagra about 60 minutes before planned sexual activity - and you can count on up to 5 hours of efficiency. Of course, the earlier you have sex after taking Viagra – the more efficient it is going to be, so make sure you plan everything ahead. Although the usual period of efficiency is 5 hours, it can be slightly different for different people, as a lot depends on your age and general health condition. Sometimes people taking Viagra, especially for the first time, may experience certain side effects that are mostly mild. The following ones can be experienced: memory problems, warmth or redness in your face or chest, back pain, upset stomach, headache, and stuffy nose. People with contraindications are not supposed to take this medicine to avoid serious health consequences. The following contraindications are possible: being allergic to sildenafil, having a history of vision problems or priapism and taking some drugs, such as nitrate-based drugs that can lead to a sudden drop in blood pressure when combined with Viagra.