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Pfizer's UK Viagra patent set to expire this month

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Pfizer, maker of blockbuster erectile dysfunction drug Viagra, is expected to face new competitors in the UK when its patent on the drug's process expires later this month. This animation explains the malfunctioning chemical process which Viagra's active ingredient treats. During sexual arousal, the brain signals nerves fibers in arteries. These fibers release nitric oxide which triggers a chemical reaction. Cyclic guanosine monophosphate (cGMP) is then released causing the arteries' walls to relax, increasing blood flow and producing an erection." Meanwhile, the enzyme phosphodiesterase-5, (PDE5) is counteracting the cGMP. As long arousal continues, the heightened blood flow and erection is maintained. In cases of erectile disfunction, insufficient cGMP is produced and is overwhelmed by PDE5. Viagra contains a PDE inhibitor which bonds with the enzyme and stops it from counteracting the cGMP. This allows enough of the chemical to accumulate and relax the artery walls, producing an erection. -------------------------------------------------------- TomoNews is your daily source for top animated news. We've combined animation and video footage with a snarky personality to bring you the biggest and best stories from around the world. For news that's fun and never boring, visit our channel: https://www.youtube.com/user/TomoNewsUS Subscribe to stay updated on all the top stories: http://www.youtube.com/subscription_center?add_user=TomoNewsUS Stay connected with us here: Facebook http://www.facebook.com/TomoNewsUS Twitter @tomonewsus http://www.twitter.com/TomoNewsUS Google+ http://gplus.to/TomoNewsUS -~-~~-~~~-~~-~- Please watch: "Crying dog breaks the internet’s heart — but this sad dog story has a happy ending" https://www.youtube.com/watch?v=4prKTN9bYQc -~-~~-~~~-~~-~-
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Text Comments (4)
kdaft (8 months ago)
This is just superb, been searching for "ways to get an erection" for a while now, and I think this has helped. Have you heard people talk about - Aidenzey Hard Framework - (should be on google have a look ) ? Ive heard some great things about it and my brother in law got excellent results with it.
exe zaid (8 months ago)
Cheers for this, I have been researching "conquering ED" for a while now, and I think this has helped. Have you heard people talk about - Aidenzey Hard Framework - (do a search on google ) ? Ive heard some interesting things about it and my brother in law got excellent success with it.
Matt Cracker (8 months ago)
This is just superb, I have been researching "pleasing my partner with a rock hard one" for a while now, and I think this has helped. Have you ever come across - Aidenzey Hard Framework - (do a search on google ) ? Ive heard some interesting things about it and my m8 got excellent success with it.
TomoNews US (5 years ago)
Due to an embargo, this story originally published 30 days ago is only now appearing in your news feed. But why wait? You can get all your animations the instant they are published by visiting TomoNews.net.

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