Viagra, the first and best-known drug for the treatment of ED, is taken one hour before intercourse. Viagra does not actually produce an erection, but allows a man to respond to sexual excitement. In essence, Viagra allows the penis to fill with blood and cause an erection. Following sex, the erection dissipates. Viagra shouldn't be used by men who are taking prescription or non-prescription drugs containing nitrates.

Viagra is by far the most recognizable brand name and for the drug sildenafil citrate. It is produced and marketed by the pharmaceutical giant Pfizer, and is also sold under the name Ravatio and Caverta in certain locations throughout the world. Viagra is produced for one reason and one reason only, to treat erectile dysfunction, or as it's more commonly known, ED. It comes in the form of a blue pill in 25mg, 50mg, and 100mg dosages. Although it is available only by way of a doctor’s prescription, you can actually buy Viagra on the Internet if you so choose.

One can get a Viagra prescription through a licensed doctor of course. Viagra is prescribed because a patient under Viagra prescription should be watched closely because of the side effects that it may cause.

Side effects of Viagra are quite bothersome, but nonetheless, men are willing to take their chances on it, for the sake of saving their pride and manhood and improving their sex lives. Viagra, like any other medicine should not be abused that is why a Viagra prescription is needed.

Consult your trusted doctor about this drug and your health condition before asking for a Viagra prescription. Some people may have allergic reactions to it that may just worsen his condition or worse cause his demise.

Viagra, the first PDE5 to rock the ED world, can treat the antidepressant and depression and other psychological problems induced sexual dysfunction. Viagra has opened a door of pleasure and happiness to those who are depressed and unhappy. New facts are coming up everyday related to human sexual behavior and its intricacies. Let’s see what else Viagra has to offer!

Erectile dysfunction is the inability of the penis to become rigid (hard), or to stay rigid long enough to finish having sex. Take Viagra 30 minutes to 1 hour before intercourse. Since many consider the hi-cost per dose of Viagra here are some Viagra Alternatives and even Female Viagra listed on the website.

Follow the guidelines while buying Viagra prescriptions online

• Don’t buy from a site that offers an online diagnosis in place of a face-to-face meeting with a physician. You should always get a written prescription first

• Don’t use a Web site that is afraid to list its address. It may be based in a country that does not have the same standards to ensure safety and efficacy as in the U.S.

• Only buy from a site that gives a US street address and a telephone number

• Only buy from a VIPPS certified online pharmacy