Viagra, or Sildenafil to be concise, is a well-known medication commonly used to treat erectile dysfunction and pulmonary arterial hypertension. There are a number of other brands of Sildenafil but Viagra is the most famous and commonly used among them. Viagra is primarily used to treat sex related disorders for males, other related medical uses of Viagra that are not mentioned above are antidepressant associated sexual dysfunction and altitude sickness. Viagra enhances smooth muscles relaxation with nitric oxide, which is normally released when sexually stimulated. This relaxation of smooth muscle allows increased blood flow in corpus cavernosum, an outer area of the penis that leads to an erection. The effectiveness of Viagra in treating sexual dysfunction in women has not been proven or demonstrated. The recommended dosage by the doctor is taken before approximately 0.5-1 hour before sexual activity to see the best result. Viagra typically works for approximately 4 hours, but the effects usually begin to decrease after 2 hours of effectiveness.
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Moreover, it could also be used for nonmedical purposes. Some of the examples of Viagra’s nonmedical uses are jet lag recovery, in sports and as a herbal aphrodisiac. However, most of these nonmedical uses are not recommended and often illegal. Sildenafil (aka Viagra) was first synthesized at a research facility in England by a group of pharmaceutical chemists at Pfizer’s Sandwich, then Sildenafil was patented in 1996, and later approved by FDA in 1998. After that, Viagra has been a great success all around the world.
Typical ways to take Viagra is oral injection(swallowed) by mouth which takes an average of 27 minutes to work, or under the tongue which takes shorter amount of time to be effective.
Like any other medications, Viagra has a possibility to cause unwanted side effects so it is necessary to be cautious and take the pills as prescribed by a doctor. Some major side effects of Viagra that require medical attention are bladder pain, burning feeling in the chest or the stomach, dizziness, pain or urination, stomach upset, indigestion, etc. which are less common and also, rare side effects such as anxiety, abnormal vision, bone pain, cold sweats, decreased vision, dry eyes and many others. There are also minor side effects of Viagra that does not necessarily need any medical attention and may disappear over time. These are symptoms such as bloody nose, diarrhea, sneezing, stuffy or runny nose, etc.
There are actually a lot of major and minor side effects that you should be aware of before taking Viagra, so it is extremely important for people who are planning to take the medication to let their doctors know about your medical history and allergies to minimize the unwanted side effects.
Viagra is FDA approved , is available in most of the countries and is easy to get with or without – although this is legal in Australia – doctor’s prescription. In Australia, you can get Viagra from a local pharmacy with a doctor’s prescription or you can also get it online for about $1.10 per pill.