Viagra: A Proven Drug in Impotence part 2

A single oral dosage of 100 milligrams for Generic Viagra should be taken once a day. In patients having any problems with kidneys or taking a diuretic or for adults over the age of 65, the starting dose may be different according to the doctor's guidance.

Viagra  ( Japanese : バイアグラ ) is usually taken about 1 hour before sexual activity; however, it may be taken anywhere from 4 hours to a half hour before sexual activity.

Side effects are common with any ED drugs including viagra. The patient may develop adverse effects such as headache (severe or continuing); heart failure; hives; increase in size of pupil; increased sweating; increased thirst; itching of skin; low blood pressure; fast, irregular, or pounding heartbeat; migraine headache; nausea (severe or continuing); nervousness. Other side effects not listed above may also take place in some patients. If you notice any other effects, check with your doctor: feeling of something in the eye; groups of skin lesions with swelling; lower back or side pain; numbness of hands; painful, swollen joints; redness, itching, or tearing of eyes; shortness of breath or troubled breathing; skin paleness; skin rash; skin ulcers; sore throat and fever or chills. If Viagra causes an allergic reaction, keep away from use of it again.