Viagra is a brand-name drug that is used to treat erectile dysfunction (ED). ED is defined medically as the inability to get or keep an erection. The generic name of the main drug in Viagra is sildenafil. As a schedule four drug in South Africa, Viagra is only available to patients with a prescription from a licensed physician. The drug works by disrupting the phosphodiesterase-5 enzyme, resulting in the expansion of the blood vessel walls and increased blood flow to the penis as a result. This results in improved erection quality and better sexual performance.
Viagra is available at a cost of around $6.20 per packet of four pills. This is due, in part, to the fact that the medication is subsidized by the government. Viagra comes in three different potencies, 25mg, 50mg and 100mg. Your doctor will prescribe the correct potency for you,
taking into account various factors such as your health, age and degree of sexual dysfunction.
As one of the most popular generic medicines in the world, patients should take precautions when purchasing Viagra to ensure that they are taking genuine medication. Viagra can be purchased through online auction sites, internet pharmacies and brick and mortar locations. Many of these online locations sell counterfeit Viagra. There are risks associated with taking Viagra. Generic tablets can contain too much of not enough Viagra, resulting in ineffectiveness or harm to your health. Some Viagra contains toxic ingredients to mimic the true-blue color of Viagra pills.
To ensure that you are not purchasing counterfeit Viagra, you should obtain a prescription from your doctor, and have it filled by a trusted pharmacist in-store. For those patients that have to rely on having their prescription filled over the internet, there are some precautions that can be taken to ensure that they are receiving genuine Viagra. The tablets should feel smooth to the touch and have a stamped Viagra brand name that is clear and free from smudging. Furthermore, the pills should have a consistent uniform blue color and be free from color variation. Finally, Viagra is supplied only as solid tablets. If you find soft tablets, gel tablets or chewable tablets, these are categorically counterfeit and should be avoided.
Viagra: common side effects
Some of the common side effects that patients experience after taking Viagra include rashes, diarrhoea and an increased susceptibility to urinary tract infections. A less common side effect of taking Viagra is abnormal vision, specifically a condition called cyanopsia. This is characterized by blurred vision, a sensitivity to light, and in some cases a blue-green color tinge in the patient’s vision. Higher doses of Viagra have been found to increase the likelihood of a patient experiencing abnormal vision. Additional possible side effects include headaches, indigestion, back pain, muscle aches, flushed skin and stuffy or runny noses. These side effects generally subside after a few hours, though more severe side effects may persist for several days and require immediate medical intervention. Viagra should be avoided is you have heart of blood vessel problems, a history of heart attacks or strokes, high or low blood pressure, liver problems, penile deformation or vision problems. When taking Viagra, you should avoid alcohol and grapefruit juice. Viagra should not be taken by anyone who is currently taking nitrates for chest pain, as the drug has been shown to increase the effects of these medications and unsafe drops in blood pressure.