Vigora 100 Mg is a popularly prescribed drug for the treatment of erectile dysfunction (ED). It is a phosphodiesterase type 5 (PDE5) inhibitor, which helps to relax blood vessels and improve blood circulation to the male sexual organ. Vigora 100 Mg is available in tablet form and should be taken orally with or without food. It starts to work within 30 minutes and the effects may last up to four hours. Vigora 100 Mg is generally safe and well-tolerated, with few side effects. The most common side effects reported are headache, flushing, stuffy or runny nose, indigestion, and dizziness. It is important to note that Vigora 100 Mg does not cure ED or increase a man’s sexual desire. It is only meant to help a man achieve and maintain an erection.