Viagra is a drug containing the active ingredient sildenafil and enhances male potency. It is used in the treatment of erectile dysfunction, which 50% of men over the age of 40 suffer from to some degree. Erectile dysfunction is when a man has difficulty getting an erection or keeping it long enough to engage in sexual intercourse. It happens due to a lack of blood flow to the penis. If affects about 30 million men in the United States. Viagra has become the prime treatment for erectile dysfunction and is the leader in market share. Initially, the drug was designed by manufacturer Pfizer scientists to treat hypertension, or high blood pressure, and angina pectoris, which is a symptom of heart disease.
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During drug trials, it was discovered that the drug did little to prevent angina but did induce marked penile erections. When it hit the market in 1998, Viagra was the first oral treatment was approved to treat erectile dysfunction in the United States. In 2008, only ten years after it entered the market, Viagra generated roughly $1.93 billion of revenue for Pfizer. Erectile dysfunction is often caused by something physical, such as a disease, an injury or a side effect from other drugs. Many medical conditions can cause erectile dysfunction, including depression, diabetes, heart disease, high blood pressure, high cholesterol, obesity, prostate cancer treatment and spinal cord injury, but no matter what the cause it, Viagra can usually help! Viagra increases blood flow to the penis so you can get and keep an erection that is hard enough for sexual intercourse. It comes in blue, diamond shaped pills in doses of 25, 50 or 100 milligrams. Only one pill maximum can be taken in a 24 hour period. It can help men with all degrees of erectile dysfunction and it usually starts to work within 30-60 minutes. Viagra can be great because you only take it when you need it so you do not have to take it regularly in order for it to work!
Viagra will also only work when you are sexually stimulated so you don’t have to worry about taking it and getting an unwanted erection. You can take it up to four hours prior to intercourse. You do not have to rush to have sex once you have taken it. After sex, your erection should go away naturally. Viagra is only available through a prescription and is not right for everyone, so it is important to talk to your doctor before you begin taking Viagra so you can determine together whether it is the right treatment course for you. Viagra does have possible side effects. The most common of these are headache, flushing, upset stomach, abnormal vision such as changes in color vision and blurred vision, stuffy or runny nose, back pain, muscle pain, nausea, dizziness and rash. In addition to these minor side effects, heart attacks, stroke, irregular heartbeat and death have happened very rarely in men taking Viagra. For the most part, these men had heart conditions prior to taking Viagra so it is not known if Viagra can cause these problems on its own. Do not take Viagra if you are on nitrates, have kidney disease, have low blood pressure, have had a recent heart attack, have had a recent stroke or have a hereditary degenerative retinal disorder. It is very important to talk to your doctor before starting to take Viagra.
I am self employed. General Practitioner in Melbourne, VIC. My special interest: male reproductive system.