Sildenafil Citrate is a popular medical pill made by the multi-national pharmaceutical company Pfizer used to treat cases of erectile dysfunction. When used as intended, it helps men, especially those in their senior years, to take away the difficulty in having a penile erection. However, just as very few medicines work perfectly, taking Viagra can have can have its own side effects that results from the interaction of the medicine with other health conditions or medicines as it passes throughout one’s body. These interactions can accidentally result in unfavorable side effects on some parts of the body.

Fundamentally, Sildenafil Citrate is strongly contraindicated for any medication that has nitrates such as nitroglycerin which is prescribed for people with angina pectoris or other heart troubles. If you are taking up any medication with nitrate, whether daily or even just occasionally, you should not take Sildenafil Citrate. If Revatio and nitroglycerin are taken together, the increased amount of nitric oxide which is called by the opening of the arteries that supply the heart with oxygen and the blocking of PDE5 can lead to grave cardiovascular problems.

Another serious side effect of Sildenafil Citrate is the sudden decrease or loss of vision. This is caused by the spillover effect of blocking PDE5 which in some cases also affects PDE6. Since PDE6 is used in the cone cells found in the eye retina, Sildenafil can adversely affect color vision especially in the way men notice green and blue colors. When you start to experience loss of vision, it is best to instantly stop taking Viagra and call a physician instantly. Pilots and drivers should also avoid taking Sildenafil Citrate within 12 hours of their travel time.

For persons older than 65 years of age and are experiencing problems with their liver and kidney or for gentlemen who have been diagnosed with prostate troubles or hypertension, the physician would usually start at the lowest dose of 25 mg of Sildenafil. Doctors also need to take special precautions with persons that have other medical issues as the medical effects of Revatio can make these issues to worsen.

So that you can avoid these side effects when taking Sildenafil Citrate, it is very essential to talk with your doctor about your health status. By understanding your medical history the physician will not only make sure that you are physically fit to engage in sexual intercourse but also in order to avoid possible wellness complications like a heart attacked or having  lengthened and painful erections.

Other commonly observed side effects include headache, nausea, facial flushing, chest pain and upset stomach. In some people, bluish vision, blurred vision, or sensitivity to light may be experienced for a short period of time. Physical discomfort during sex and prolonged erections lasting for more than 4 hours may also be experienced. Sildenafil can also have a serious side effect with younger gentlemen who usually take Sildenafil in order to heighten their sexual experience and less for medical reasons. In these cases, it can result in drug dependency and make them unable to have an erection without Sildenafil Citrate.

When any of these side effects is observed, it is very important to stop taking Viagra and go seek medical help instantly from your Doctor.