What is Brand VIAGRA?

A brand name medicine, which is the direct opposite of a generic drug, is a medication developed, approved and marketed under original patent protection issued by authorized agents.

The patent protection for brand name VIAGRA was granted for 13 years (till 18-Jun-11) since the approval, and then extended for half a year till 03-2012.

Introduced in 1998 by Pfizer Inc, Viagra has been effectively used to treat erectile dysfunction, whether organic or psychogenic, in males. Viagra has quickly become an American and Worldwide blockbuster, which has given millions of men, suffering on erectile dysfunction, a new hope and satisfaction.

VIAGRA comes in 25, 50 and 100 dosages.

Sildenafil citrate, a selective PDE5 inhibitor and an active ingredient in Viagra®, enhances vasodilatory effect of nitric oxide of the male's penis maintaining erection for sexual intercourse.

Despite many myths, Brand Viagra is neither an aphrodisiac, nor does not increase sexual desire or protect from unwanted pregnancy and sexually transmitted diseases, including HIV.

See whether VIAGRA is appropriate for you, how VIAGRA is taken, if VIAGRA has side effects and Contraindications and warnings.

What Does Authentic VIAGRA Look Like?

Viagra® is a blue-colored pill of a diamond shape with "Pfizer" and "VGR100" (for 100 mg dose) labels on both sides, respectively. VIAGRA is a prescription (Rx) medicine, indicated for oral use.

What Means a Patent Expiration?

When a patent protection gets expired, this means the developing and marketing company, which is Pfizer Inc for VIAGRA, has no longer exclusive rights for selling its product, and is to share, if not give away, the revenues from the product with producers of generics .

After expiration, the market gets flooded with certain generic formulations of the no-more-patent-protected drug. The prices for generics are 5-10 times lower and are adjusted by the market's competition.

Typically, appearence of generic alternatives for a certain medicine is a good thing, since patients have a wider range of options to apply with, according to needs and income levels.

A significantly cheaper price for a generic drug, stimuling demand, does not actually mean the quality of the generic drug would be somehow affected. The chemical structure, benefits, as well as contraindications, side effects and interactions of the original brand and its generic are exactly the same.

To appear on the market, any generic drug is obliged to undergo prior evaluations and approval process by the state authorities.

BRAND VIAGRA VS GENERIC

It was a bare listing of facts. But with VIAGRA it was different. Overwhelming success on the market became a curse for its developers and a catalyst for Indian and China based pharmaceutical companies to start promoting own sildenafil based products.

Silagra, Kamagra, Penegra, Tadagra, Edegra, Lovegra, Eriacta are just the top of the iceberg, since the exact number of counterfeit Viagra products is actually unknown.

Generic VIAGRA which was supposed to appear on the shelves of pharmacies in far far 2012, was made available to customers a year or two, after VIAGRA was approved and marketed for ED in 1998.

The Internet became a great tool for this purpose.

Additional Information on Brand VIAGRA

• VIAGRA: Frequently Asked Questions
• VIAGRA Blog
• Prescribing information: http://www.pfizer.com/files/products/uspi_viagra.pdf
• U.S. Department of Health and Human Services: http://www.nlm.nih.gov/medlineplus/druginfo/meds/a699015.html
• Impotence Quiz. Test yourself: http://www.rxlist.com/quiz_impotence_erectile_dysfunction/quiz.htm