Side Effects of Viagra

Viagra (Sildenafil Citrate) is a popular medical pill manufactured by the multinational 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 drugs work perfectly, taking Viagra can have can have its own side effects that results from the interaction of the drug with other health conditions or medications as it flows throughout one's body. Buy Viagra online without prescription; These interactions can unintentionally result in adverse effects on some parts of body.

Basically, Viagra is strongly contraindicated for any medicine that has nitrates such as nitroglycerin which is prescribed for people with angina or other heart problems. If you are taking up any medicine with nitrate, whether daily or even just occasionally, you should not take Viagra.

If Viagra 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 serious cardiovascular problems.

Another serious side effect of Viagra 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, Viagra can adversely affect color vision especially in the way men notice green and blue colors. When you start to experience loss of vision, immediately stop taking Viagra and call a doctor immediately. Pilots and drivers should also avoid taking Viagra within 12 hours from travel time.

How to buy Viagra online – For persons older than 65 years old and are experiencing problems with their liver and kidney or for men who have been diagnosed of prostate problems or hypertension, the doctor would usually start at the lowest dose or 25 mg of Viagra tablets.

Doctors also need to special precautions with person with other medical conditions as the medical effects of Viagra can trigger these conditions to worsen.

In order to avoid these side effects when taking Viagra, it is very important to talk with your doctor about your health status. By understanding your medical history the doctor will not only make sure that you are physically fit to engage in sexual intercourse but also in order to avoid possible health 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 persons, bluish vision, blurred vision, or sensitivity to light may be experienced for a short period of time. Physical discomfort during sex and lengthened erections lasting for more than four hours may also be experienced.

Viagra can also have a serious side effect with younger men who usually take Viagra in order to heighten their sexual experience and less for medical reasons. In such cases, it can result in drug dependency and make them unable to have an erection without Viagra.
When any of these side effects is observed, it is very important to stop taking Viagra and immediately to see your doctor and seek medical help.