There are lots of impotency drugs in the market. Of all the available Erectile deficiency drugs, Viagra is the most sold one. This is because viagra is known to be safe and also it acts fast. So with just one viagra tablet, you can change of your sexual life.

Drug Usage

All ED medicines act on the body in the same way. Before looking at how the drug acts, let us see the relation between blood flow and penis erection. The more the blood in the region, the better the hardness. Viagra drug widens the vessels that carry blood to the penis, which leads to more blood flow.

How to Take Viagra

Viagra is got in tablet form. Always follow the doctor’s direction while using viagra or you may have many complications regarding your health. Only one viagra tablet is advised a day. If more doses are used, then it is dangerous. Moreover, one should only take a second tablet of viagra after 24 hours of taking the first one. Viagra can be used an hour ahead of sex.

More Information

As stated earlier, medicines should only be used with prior permission of the doctor. Never try to deviate from the dosage. Another thing that has to be taken care is that when discussing with the doctor, make sure that he is aware of all your health conditions, including the allergies and also diseases. Let the doctor be aware of your allergies related to food, various substances and medicines.

In case you have angina, problems of liver/heart/kidney/blood, painful erection and prolonged erection, then there is a possibility that viagra may not be prescribed and if at all prescribed,. The doctor will go for dosage adjustments.

Warnings

No two drugs will go together. It is likely that viagra may interact with some drugs. So it is better that your doctor has an idea about all the drugs that you are using.

The doctors generally ask to stop taking viagra if you are using any medicine that is filled with nitrate. This is so as combining the two drugs will lower the blood pressure, which can only complicates matters.

Doctors also ask you to stop consuming alcohol as it has the tendency to increase the side effects. Grape and grape juice should also be given up if you want to use viagra.

Some persons after taking viagra have complained of sight loss. But it has to be noted that the sight loss was found only in men who were diabetic and those who already had problems and those who had high blood pressure. So it is not yet clear if viagra is the main villain here.

When having sex, after using viagra, you have to always cautious. In case you have dizziness or chest pain o any uneasiness, it is better to contact the doctor at that point of time.

Side Effects

Dizziness, flushing, colour vision, headache and stomach upset are some of the side effects seen when taking viagra. But it has to be seen that all the side effects seen with viagra are not serious and will not last for long.