Tadalafil, the active ingredient in Vidalista 60, works by increasing blood flow to the penis during sexual stimulation. This helps men achieve and maintain an erection suitable for intercourse. It does not cause spontaneous erections and requires sexual arousal to be effective. Common side effects of Vidalista 60 may include headache, flushing, nasal congestion, indigestion, back pain, and muscle aches. Serious side effects such as priapism (prolonged erection) are rare but require immediate medical attention. https://www.genericday.com/vidalista-60-mg.html