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Does viagra affect fertility

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    Does viagra affect fertility


    Viagra, the 'wonder-drug' promoted for its ability to relieve impotence in men, may have some unwanted side-effects. Research presented today in Cheltenham, UK, at the annual meeting of the British Fertility Society, suggests that men who are taking Viagra when trying to start a family may actually be decreasing their ability to father a child. However, Viagra manufacturers Pfizer deny that the drug causes fertility problems. Viagra was designed to enable an increase of blood flow to the penis to overcome impotence problems. However, since its release it has increasingly been used 'recreationally', and is also used by fertility clinics in order to aid patients' semen production. Viagra is what is known as a 'phosphodiesterase inhibitor', a type of chemical known to affect sperm function, so the study looked at what effect the drug has on sperm. The researchers discovered that using Viagra speeds up chemical changes within sperm, rendering them infertile by the time they reach an egg. buy valtrex online for cheap Men who take Viagra when they are hoping to start a family could be affecting their fertility. The finding, by Queen's University, Belfast, also casts doubt on the use of the anti-impotence drug by IVF clinics. The researchers will tell a British Fertility Society meeting that the drug does enhance sperm movement. However, it also seems to undermine the timing of a chemical process needed to fertilise the egg. This process, known as the acrosome reaction, releases digestive enzymes that break down the egg's protective outer layer, allowing the sperm to penetrate more easily. Viagra seems to speed up the acrosome reaction, so that by the time the sperm reaches the egg it has no digestive enzymes left to penetrate the outer layer. Sperm that have undergone this process are known as fully "reacted". They found that up to 79% more sperm were fully "reacted" in samples treated with Viagra.

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    Apr 1, 2003. Viagra may affect male fertility, warns new research from Queen's University. Researchers say they do not yet know if Viagra might have. legit site to buy propecia Feb 23, 2008. Using Viagra may be damaging men's fertility, researchers have warned. Experiments suggest that the anti-impotence drug can harm sperm. Apr 1, 2004. Pfizer says Viagra does not decrease fertility. Reuters. drug Viagra may both affect a man's fertility, according to a report in the Sunday Times.

    By Christa Sgobba Lots of men with erectile dysfunction depend on drugs like Viagra to give their penis a boost in the bedroom. But that might not be the only below-the-belt benefit to taking those kinds of meds. Erectile dysfunction drugs called phosphodiesterase type 5(PDE5) inhibitors—which include meds like Viagra, Cialis, and Levitra—may also boost sperm quality in men whose swimmers aren’t up to snuff, a new meta-analysis from China concludes. After crunching the numbers from 11 studies including 1,317 men, they discovered that taking the erectile dysfunction meds increased the number of motile sperm and normally-shaped sperm in men who were considered infertile—because of low sperm counts, for instance. That’s important, since sperm motility, or how effectively they move, and sperm morphology, or how normally they are shaped, are important factors in what makes sperm successful. And that can affect your ability to get your partner pregnant. The researchers also discovered that chronic administration of the erectile dysfunction drugs seemed to be more effective at improving sperm parameters than just popping the pills as needed. You’re stressed at work, money worries are getting you down and the kids are going through their “terrible teens”. “Just a couple of those little blue pills”, you tell your doctor, to give you that “extra helping hand”. The little blue pill has answered the prayers of millions of middle-aged men (and their partners) across the world since it was introduced by Pfizer Pharmaceuticals nearly 20 years ago. He obliges, scribbling out an illegible prescription. We all know the drug, know what it does; heck, some of you male readers may even have tried it yourself (purely out of curiosity, I hear you say). “And sir, don’t worry about contraception”, he tells you, “Viagra will cover that too”. What you may not know, however, is that scientists have discovered that Viagra has effects on sperm cells that could see the drug labelled a so-called “anti-fertility” agent. You pause, thinking all your Christmases have come at once. So, has the world’s first male oral contraceptive drug really been sitting in our medicine cabinets all along? Within weeks of Viagra being licenced for use, doctors had written over 100,000 prescriptions for its treatment of erectile dysfunction. Viagra is a muscle relaxant and works almost exclusively in the male reproductive tract. ), a spongy body of muscle within the penis (the However, what has not been considered is that the male reproductive tract is full of muscle. Contrary to popular belief, the male ejaculation is complex and relies on careful, co-ordinated contractions of several different muscles.

    Does viagra affect fertility

    Can viagra damage sperm, does viagra affect, Men who take Viagra 'put their fertility at risk' Science The Guardian

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  4. Viagra use 'may damage fertility'. British Fertility Society meeting that the drug does. overall detrimental effect on fertility has.

    • BBC NEWS Health Viagra use 'may damage
    • Viagra's side-effects may damage fertility - BioNews
    • Study Shows Popular Erectile Dysfunction Drug May Lower Male Fertility

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