Vega 100mg tablets contain the active ingredient Sildenafil, a substance commonly used to treat erectile dysfunction in men. This medication works by increasing blood flow to the penis, helping a man get and keep an erection when he is sexually stimulated. It is important to note that Vega does not cause an erection simply by taking the pill; sexual stimulation is necessary. Users should take one tablet about an hour before planned sexual activity, and not use more than one tablet in 24 hours. As with all medications, Vega 100mg can cause side effects, including headaches, facial flushing, and indigestion. These are typically mild to moderate and temporary