Erectile dysfunction can be extremely disheartening: how Viagra may help it

Viagra is used to treat erectile dysfunction in men that are typically older. It was developed first by scientists based in the United Kingdom, and was later marketed by Pfizer, a large multinational pharmaceutical company. The discovery was somewhat unintended because they were originally working on a drug to reduce hypertension and angina pectoris. During the initial trials, the drug was somewhat ineffective at treating angina pectoris, but it did a markedly better job at sustaining erections. By 1998, Viagra hit the market and became one of the top selling drugs. It earns about $1.93 billion in revenue for Pfizer annually. Viagra is shown to have no effect in people not suffering from erectile dysfunction, but it has been reported to have a strong placebo effect. Is Viagra safe? Viagra in South Africa is usually safe to consume provided that it is taken with the correct dosage amount. Overdosing can lead to bad side effects such as headaches, nasal congestion, impaired vision, photophobia, or light sensitivity, and indigestion. Rarer side effects include heart attack, hearing loss, increased intraocular pressure, and ventricular arrhythmias. It is also possible, though rare, for Viagra to cause vision loss. This can happen because Viagra causes Continue Reading