Buy Viagra

Viagra (sildenafil citrate) is most often used by male patients unable to keep their erection for long enough to have sex. Viagra is a PDE5 inhibitor that works by stimulating powerful blood flow to the tissues of the penis, which results in harder erections during the period of the drug’s efficiency. For getting the most out of Viagra treatment, it is supposed to be used 40-60 minutes before the patient is planning to have sex. Viagra is expected to be efficient during up to 4 hours, although this period can be different for different male patients.

Viagra comes in a few different doses to suit the needs of every patient, no matter what their sexual inability has been caused by. Being older than 65 may require a lower starting dose, as older patients tend to be more sensitive to the effects of the medicine. No matter which dose you have been prescribed originally, it can be changed later to make sure you get all the benefits of your Viagra treatment. You can be prescribed 25 mg, 50 mg, or 100 mg of Viagra, while in other cases your doctor may decide to give you a 75 mg dose by combing 25 mg and 50 mg pills.

Very few drugs are actually 100% efficient. However, because of Viagra’s effects being purely physical, it’s likely to be efficient for a very significant percent of men taking it — about 90%. In most patients, Viagra treatment is problem-free, but there are still a few things to keep in mind when using this medication.

The so-called «spillover effect» can occur in some patients, caused by the fact Viagra’s active ingredient may interfere with another enzyme — PDE6. As a result, certain changes in color vision are possible, including changed perception of green and blue colors. This is the reason why some people are not supposed to use Viagra before doing a job that requires perfect color vision.