Viagra is a medicine with a unique and colourful history. Viagra was first used to treat hypertension and angina pectoris and was discovered by scientists in the United Kingdom and brought into the marked by the drug company Pfizer. These days, those little blue diamond shaped pills have a very different use. Viagra’s main use is to aid those who have been afflicted with erectile dysfunction or ED. Viagra works by soothing the muscles in the walls of blood vessels thus allowing the vessels to more easily pump blood.
Viagra can help man more easily achieve an orgasm but does not contribute to sexual stimulation. To give you a further run down, this is how viagra works: when one is sexually stimulated, say by his partner, nitric oxide is blasted by the nervous tissue into the erectile tissue of the penile organ. Nitric oxide does this neat thing where it stimulates an enzyme that produces cGMP. Now I bet you’re asking, what’s the cGMP? Well, cGMP is the chemical that causes the arteries in the penis to dilate, thus allowing blood to rush in, thus allowing for the male to achieve an erection. And here is where Viagra comes in! Viagra doesn’t allow cGMP to degrade so one can get harder and stronger erections.
One should be careful when taking Viagra, though. If one is taking Viagra they should be aware of various side effects. One common side effect is headache, a headache that can occur anywhere in the head region. Other people have reported that they have experienced nasal congestion after taking Viagra. Some people have reported back to their doctor with impaired vision and other people have reported photophobia which is a sensitivity to light. Other people have complained of dyspepsia or indigestion. Some have said that Viagra has caused a blue tinge to cover their field of vision.
Viagra also comes with more dangerous side effects. These side effects are much less common, though, and should not deter one from talking to your doctor about taking Viagra. These side effects can include painful, long lasting erections otherwise known as priapism. If you take viagra and your erection lasts longer than 5 hours then you should consult a doctor immediately. Another major side effect of Viagra is heart attack. If you feel woozy after taking Viagra you should consult a doctor. Other major side effects include sudden hearing loss, increased intraocular pressure, and ventricular arrhythmias. Viagra decreases blood pressure to the optic nerve which can cause people with problems such as diabetes or heart disease more at risk.
With all that said, people who are protease inhibitors to help treat HIV should talk about taking viagra with their doctor before making any decisions to take the medication. If one is taking an alpha-blocker, they should make sure to take Viagra at least 4 hours before taking their medications to avoid any serious complications. People with certain conditions should not take Viagra. These people include: people who take nitric oxide donors, men who have been advised by their doctor to avoid sexual intercourse because of cardiovascular risk factors, those who have limited liver functioning, men with low blood pressure, those who have weak kidneys, those who have had a recent stroke or heart attack, those with retinal disorders.
Talk with your doctor to see if Viagra is right for you today.
I am medical practitioner from Cape Town. My professional interest: new treatments of erectile dysfunction.