Viagra, also known as sildenafil, is a medication used by men for erectile dysfunction and pulmonary arterial hypertension. There are common side effects like headaches and heartburn, but many men still take the medication. Other, less common side effects include flushing, indigestion, nasal congestion, and impaired vision. Visual side effects could also include blurred vision, seeing everything with a tint of blue, and loss of peripheral vision. Some very rare side effects include prolonged erections, severe low blood pressure, heart attack, stroke, ventricular arrhythmias, sudden hearing loss, and intraocular pressure. There is also one fatal interaction is with glycerin trinitrate which is a nitrate. Mixing the two could result in a fatal drop in blood pressure. Viagra should also not be taken with nitroglycerin, isosorbide mononitrate, isosorbide dinitrate, sodium nitroprusside, and alkyl nitrites also known as poppers. It should also not be taken with riociguat which is a stimulator and it should not be taken by individuals who have a known hypersensitivity to sildenafil.
Viagra works by by inhibiting an enzyme that regulates blood flow in the penis. It was originally discovered as a treatment for cardiovascular disorders, but is now used all over the world to treat erectile dysfunction. Other uses for Viagra are as an antidepressant-induced erectile dysfunction, pulmonary hypertension, and Raynaud’s phenomenon. There are also non-medical uses for Viagra. Some young adults use it because they believe it will enhance sexual experiences. Also, a very small amount of research in hamsters suggests Viagra can help with jet lag. Some professional athletes use it because they believe the opening of their blood vessels will enrich their muscles and increase athletic performances.
Most types of Viagra are taken by mouth. The pill is either swallowed or a lozenge is used under the users tongue. Generally, the medication takes between 12 and 40 minutes to take affect when swallowed and 15 minutes when used under the tongue. Although much less used, there is also a mouth spray that can be used to prepare the body for Viagra which makes the pill kick in faster.
Competitors for Viagra are Cialis and Levitra.
South African is one of the countries in the world that has the largest market for Viagra. Websites in countries like India, UK, and Hong Kong sell the medication under different names online around South Africa. There is a lot of generic medication, so users have to be careful when purchasing the medication online. Some countries make the medication available without a prescription, but South Africa is not one of those countries, so buyers have to be careful.
In South Africa, prices for Viagra vary depending on how the drug is purchased. Prices range from 4 pill for R40.00 to as high as R620.00 for 50 grams of powder.