Viagra is the first thing that comes to a man’s mind if he happens to suffer erectile dysfunction. Even with many other medications for erectile dysfunction in today’s market, this product of Pfizer still remains as the most reliable and well-known.
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The generic name if Viagra is Sildenafil as it is the main active chemical component of the drug. Sildenafil was first used to treat pulmonary hypertension but then a side effect was discovered that those who took Sildenafil could achieve a better than normal erection. More studies and researches were done for this new side effect and this how Viagra was created as the first medication for erectile dysfunction in men. The way Viagra can treat erectile dysfunction is related to the PDE5 enzyme. This enzyme is found in the blood vessels near the male sexual organ and it is known to tighten the blood vessels thus prevent the blood flow into the penis when a man is sexual aroused. As a PDE5 inhibitor, sildenafil blocks the PDE5 enzyme thus allow a higher amount of blood to be pumped into the penis to create a stronger and firmer erection. The erection under the effect of sildenafil is totally natural and therefore still requires a sexual stimulation. Sildenafil does not directly cause the erection. After ejaculation happens, the erection will end and the penis will return to to its normal, flaccid state.
The FDA has approved sildenafil for treating both erectile dysfunction and pulmonary hypertension. However, there are some side effects that men who want to buy and use Viagra should be aware of. First of all, a drop in blood pressure is the side effect that is the direct consequence of how Viagra can treat erectile dysfunction. In fact, when a higher amount of blood is pumped into the penis, it will create a low blood pressure in the body. This should be nothing to worry about if the man who took Viagra is perfectly healthy. But if there exists a heart problem, then it could lead to a stroke or a heart attack which can be quite dangerous. Another case that the low blood pressure can happen is if the man is also taking other drugs that can cause low blood pressure. Then the drug interaction between the other drug and Viagra can create a huge low blood pressure. So to be safe, before buying and using Viagra, you should have your health checked and ask a doctor’s opinion if it is safe for your to use Viagra.
Besides the low blood pressure problem, there are also some other less troublesome side effects of Viagra. A mild headache and nausea feeling can occur. Sometimes back and abdominal pain can happen. Sometime you can get a temporary loss of hearing and vision. These side effects usually appear around 15 minutes after taking Viagra and will disappear naturally after a few hours.
Viagra tablets are blue and diamond-shaped. You can buy Viagra without doctor’s prescription either in a pharmaceutical store or on the internet. It is recommended to read the drug instruction before taking the drug. Viagra should be taken with a full glass of water around 1 hour before having sex. Generally, alcohol and grape fruit should be avoided when taking Viagra to get the full effects of the drug.
I am self employed. General Practitioner in Melbourne, VIC. My special interest: male reproductive system.