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Patent is a form of intellectual property protection for new inventions. It covers how things work, what they do, how they do what they do and how they buy Viagra online. It gives the owner of the patent right to prevent others from making, using, importing or selling an invention without permission.
Medicine is powered by patent law, which means that a company has the exclusive right to market drugs they were found and developed. Other companies can not make or placed on the market the same drug until the patent has expired.
Firstly when pharmaceutical companies are discovering new drug they have been issued with a supplementary protection certificate.
Standard patents in the EU are valid for up to 20 years to allow time drug to fully develop and studied in clinical trials.
But when the medicinal product is finally approved and licensed for sale, the summary of product buy Viagra online allow an additional period to 15 years the company's drug market exclusively.
Buy Viagra was first approved in 1998 and had exclusivity on the 15-year period, which ended a few days ago.
Brand name (in this case, buy Viagra online) is the name of the product as original company that makes the drug (in this case, Pfizer). Generic name refers to the active ingredient in the drug (in this case sildenafil citrate). This is a "non-INN, which means that it is not protected by a patent and no company has the right to that generic name. When the patent expires, other companies that produce their own versions of the drugs and sell them under this generic name buy Viagra 10 mg.
Even though they contain the same active ingredient as brand, generic versions of the drug are usually cheaper because the cost of research and development were lower.
Generic drugs can cost up to 80% less than branded drugs, which means that prescribe them can save a lot of money.
Two days ago a pharmaceutical company issued a press release reporting that they have created a generic version of sildenafil. Kim Innes, commercial director, was quoted as saying: "sildenafil is one of the most popular generic launch until 2013, and we are very pleased to be able to provide purchase viagra this medication our customers from the first day of branded Patent expiry shelf life. "

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