Viagra pills are treated as the magic blue pills for men with performance issues, but are there any downsides?

Pfizer, which produces Viagra, has long published a list of potential issues and cautionary notes of these blue pills. Now, a new study is alleging that there may be an additional issue. Specifically, does Viagra affect fertility?

Viagra is, of course, the little blue pills that has reintroduced millions of men to the world of intimacy. The drug was originally designed to treat high blood pressure and angina issues, but these blue pills had a very fortunate side effect. Specifically, the little blue pills tend to drop blood pressure and that can be dangerous is some cases. Beyond that however, the use of Viagra is safe enough that the FDA obviously approved it.

So, what impact blue pills have on fertility?

The first claim came from a study in 2000. It claimed the drug actually increased fertility rates, but for women instead of men. Women who suffered from a health problem involving thin uterus walls would take the blue pills and pregnancies were the result. The theory was the drug caused increased blood flow to the uterus, which increased the thickness in the walls. Generally, however, Viagra blue pills were shown to be toxic to women and fetus in the womb.

A study at Queens University Belfast in 2007 turned the question around. It asked if Viagra blue pills impacted the fertility of a man's sperm. The results were such that the researches claimed it did. The basic idea is that blue pills weaken the crown of each individual sperm. As a result, the sperm is unable to pierce the egg in the womb and often doesn't even make it there.

The "Belfast Study" has been met with rather fierce opposition by Pfizer as you might expect. It is the only test of its kind to show this, which makes drawing any conclusions a dubious affair. For those trying to conceive, however, it may be worth taking into consideration. Until additional studies replicate the results, however, one should be hesitant to react excessively to this finding.

New studies indicate the 3 drugs used to treat male impotence also appear to work in females, albeit a little differently, and should give the scientific community pause to take a second look at their potential in the 40 % of women who report sexual dysfunction, researchers say.
In one of the first studies of the effect of inhibitors – Viagra blue pills, Levitra and Cialis – on the pudendal arteries that supply the penis, vagina and clitoris the blood needed to produce a satisfying sexual experience, Medical College of Georgia researchers showed the drugs relax the artery in male and female rats.

Although there was talk years ago of a pink pills for women to parallel the blue pills Viagra for men, early clinical trials found essentially no response in women.

Researchers decided to look again, first giving the blue pills to constrict the internal pudendal arteries in male and female rats – as they would be in a non-erect state – then giving doses of each impotency blue pills to see the impact. The arteries from male rats displayed a relatively standard concentration-dependent relaxation – the more blue pills they got, the more they relaxed – while in females arteries, there was an initial relaxation then an odd oscillation between relaxation and contraction with subsequent dosing.

While they don't fully understand the swing, the unique female response likely provides more evidence that sexual function is more complex in females.

They found one other distinction: females were more sensitive to Viagra blue pills, or Sildenafil, while males were most sensitive to Levitra, or vardenafil.