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A patent is a form of intellectual property to protect new inventions. It covers, how things work, what they do, how they do it, what they are made of, and how they are buy viagra online. It gives the owner of the patent the right to prevent others from making, using, importing or selling the invention without permission.
Medicine is driven by patent law, which means a certain company has the exclusive right to market a drug, they have found and developed. Other companies are not allowed to make or place on the market the same medicine, until the patent expires.
In the first place, when pharmaceutical companies are discovering a new drug they are issued with a supplementary protection certificate.
Standard patents in the EU are valid for up to 20 years to give time for the drug to be developed fully and studied in clinical trials.
But when the medicinal product is finally approved and granted a licence to be sold, the summary of product buy viagra online allow a further period of up to 15 years for the company to market the drug exclusively.
Buy viagra was first approved in 1998 and had a 15-year exclusivity period which ended a few days ago.
The brand name (in this case, buy Viagra online) is the name of the product, as the original company that made the drug (in this case, Pfizer). The generic name refers to the active ingredient in the drug (in this case the sildenafil citrate). This is a “non-proprietary name, which means that it is not protected by a patent, and no company owns the right to this generic name. When a patent expires, other companies producing their own versions of the drug and sell them under this generic name buy viagra 10 mg.
Although they contain the same active ingredient as brand name, generic versions of the drug are usually cheaper, because research and development costs have been lower.
The generic drugs can cost up to 80% less than the branded drugs, which means that prescribing them can save a lot of money.
Two days ago the pharmaceutical company issued a press release reporting that they had created a version of the generic sildenafil. Kim Innes, commercial Director, is quoted as saying: “Sildenafil is one of the highest-profile generic launches by 2013, and we are really pleased to have been able to provide purchase viagra this medication to our customers from day one of the branded patent expiration date.”

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