Viagra is one of the most popular drugs in the planet as there are more and more men using it for treating erectile dysfunction. There are million s of people using Viagra every year and their number is increasing due to the online purchasing explosion. Besides Viagra, Cialis and Levitra are also drugs with the same effects that can be bought online.

The Internet becomes more and more popular and we use it for a lot of our daily activities. With the Internet explosion, many people are purchasing Viagra online from online pharmacies.

This is mainly due to the fact the men are embarrassed by this subject and they do not want to purchase Viagra from a brick and mortar pharmacy facing the curious faces of the pharmacists. Also, another reason why men purchase Viagra from online pharmacies is that they might be far from a pharmacy selling Viagra.

Viagra purchasing needs a prescription. Online pharmacies have managed to overcome this problem with an online prescription. This should be avoided at all costs. It is of high importance that you consult a doctor prior to taking Viagra and an online doctor is out of question. There are a lot of side effects that you should be aware of including headaches, flushing, stomachaches, indigestion, dizziness, urinary tract infection and others.

Viagra is a very successful drug and this made a lot of other variants to appear on the market called generic Viagra. Kamagra, Caverta, Penegra are among these generic variants for Viagra. All of these generic Viagra products can be bought online and their prices are lower than normal Viagra as it is a high competition between them.

Unfortunately, many of these generic Viagra products are false. It is said that more than 75 % of these products are placebos or do not have enough active ingredient in them. Therefore, you should do a little research prior to purchasing Viagra online as you do not want to spend your money on a placebo.

Also, a proper consultation with your doctor is very important because taking Viagra with other drugs increases the risk of having health problems. Also, having blood pressure problems, diabetes or heart diseases should be known by your doctor before you take Viagra.

If you take any form of Nitrates you should not combine them with Viagra. This is because some drugs can interfere with Viagra and Viagra can interfere with some drugs thus inducing all kinds of unwanted side effects.