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The Impact of Generic Viagra

Since its launch in 1998, ten years ago, Viagra has become the fastest selling drug, in the history of medicine. The pharmaceutical giant Pfizer has sold over 37 million Viagra tablets in the UK alone. Viagra remains as the best selling impotence medication over Cialis and Levitra as similar counterparts of erectile dysfunction drugs. This worldwide phenomenon, “Viagra” has now become a household name.

Although the fact that impotence has become a major problem and a special interest topic many men do not feel comfortable talking about EDS to a medical doctor. Because of this reality there are many legal websites where anybody may address the issue through online means and obtain positive results. One of these websites is XL Pharmacy, which over the years has helped many people face EDS including the use of Sildenafil Citrate, which is the active ingredient in “Viagra”. This active ingredient Sildenafil Citrate was first used to help patients suffering with angina and the arousal effect was a common side effect. This side effect has been synthesized and marketed to a very high degree of success as “Viagra”.

Introduction to online and generic Viagra, cialis and levitra.

Erectile dysfunction or impotence is a very common problem in males ages 30 and up. During 1998 the company Pfizer introduced Viagra, which was already tested and FDA approved to be sold in the United States of America, and in the incredible boom of impotence pills for men arose other generic medications competitors like tadalafil also known as Cialis, and vardenafil also known as Levitra. All of these medications contain the active ingredient Sildenafil Citrate, which is what gives impotent men a lasting erection.

Viagra was actually created to treat a condition by the name of angina, but during the medical studies erections were observed as a side effect of the treatment with Sildenafil Citrate. It all started at Pfizer's England study center named Kent, where Sildenafil was first synthesized. In 1996 Viagra was first pill approved to treat male impotence, erectile dysfunction or erection problems. To develop this incredibly successful drug scientists studied more than 1500 different compounds and spent an estimated $750 million. It took 13 years to bring Viagra from conception to production.

Pfizer's Viagra sales in the year 2000 accounted for almost 92% of the global market for impotence or erection medications. By the year 2007 Viagra's global share had plunged to about 50 because of the introduction of the generic version known as Cialis and Levitra, along with several other counterfeits and clones, which is the reason why you should only buy the pills from your trusted and secure online pharmacy like

Sildenafil Citrate, Viagra, Levitra, Cialis, "Vitamin";, "the Blue Pill", or however producers call it is available by prescription from a doctor. Many drug stores and online pharmacies offer Viagra for sale after an online consultation, often a simple web questionnaire that's latter evaluated. The Viagra name has become so well known that many fake aphrodisiacs now call themselves herbal Viagra or are presented as blue tablets imitating the shape and color of Pfizer's product.

Viagra or more specifically Sildenafil is a inhibitor of specific phosphodiesterase type 5 which has to degrade cGMP in the penis. The molecular structure of sildenafil is very similar to cGMP and will bind as an agent of PDE5 in the penis, resulting in more cGMP and better, longer lasting erections. It's supposed that without sexual stimulation sildenafil should not cause an erection, however there have been reports of rise in libido and desire, which in turns does lead to the erection without sexual intercourse. Other drugs that operate by the same mechanism include tadalafil (Cialis) and vardenafil (Levitra).

Sildenafil made by the metabolisation of hepatic enzymes and excreted by both the liver and kidneys. Its better to take Viagra or any other impotence, sexual dysfunction or erection medication not with a full stomach, as this will delay the effect and lessen the peak of the Sineldafil Citrate.

More uses for online Viagra and other sildenafil citrate products

As with all prescription drugs proper intake should be recommended by a'licensed medical doctor, Sildenafil pills often come in various presentations being 25 mg to 100 mg tabs not to be taken more than once per day between 30 minutes and 4 hours prior to sexual intercourse. Viagra, Cialis or Levitra users should start with a dosage of 50 mg and then lower or raise the dosage to their needs and body metabolism. Viagra users have reported various side effect related with the drug, including palpitations, headaches, sneezing , dyspepsia, and photophobia, amongst others.'Patients suffering and in treatment for HIV are contraindicated to take any form of Sildenafil Citrate, be it directly from Viagra or from any of the generic versions like tadalafil (Cialis) and vardenafil (Levitra).

In the year of 2005 a group of scientist leaded by Roland Fries discovered that Sildenafil Citrate, the main ingredient in Viagra and other generic medications for erectile dysfunction could reduce the rate of Raynaud's disease by almost one full half, which features loss of color in the fingers, toes, and other extremities, cutting recuperation time and increasing capillary blood velocity, on very precisely controlled environments. Sildenafil has also been useful in prevention and treatment for pulmonary edema closely related to high altitudes. It's only recently that this exiting property of the medication has been realized, and it's becoming standard procedure when treatment for rapid descent is far away or long delayed. Diluting small amounts of Viagra, Levitra or Cialis, mainly the compound Sineldafil Citrate in a little water has been proved to reduce flower wilting by quite a bit.'Experiments have demonstrated that plants under the Viagra 'effect' have doubled their life time.'Also some studies suggest that this medication can aid in the treatment for jet lag, and research papers are awaiting process by the Academy of Sciences.

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