Pfizer developed Viagra as a treatment for men with erectile dysfunction. Viagra is a prescription medicine that should only be taken when and if you want to have sex and is only active on arousal. This arousal may take the form of physical activity or it could be visual, but either way it is necessary if the Viagra treatment is to work. Viagra is a prescription medicine that should be taken only by men; it is not suitable for female patients. It is understood that new medicines may soon be available for female impotence, for instance a testosterone patch.

The Viagra dose size will depend upon the degree of erectile dysfunction of the man, but Pfizer recommend that initially this should be no greater than 50mg of Viagra, which can be adjusted with experience. However, as with all medication the advice of the prescribing doctor should be followed at all times. Viagra should be taken as a single dose up to an hour before sexual activity. It can be taken with or with out meals, and should not be repeated within 24 hours. As can be seen, some degree of planning is required with this treatment. Patients should carefully read any literature that comes with the product.

Viagra is seen to work in about 80% of men within an hour and usually will last up to 4 hours. Viagra is supposed to be compatible with alcohol and most fatty diets. However, patient experience collected by UK Medix has shown that the treatment works better if these foods and alcoholic drink are avoided.

If the first time you take Viagra it does not work, try again and if necessary adjust the dose. Viagra works in people in different ways.