Men who have erectile dysfunction (ED) or premature ejaculation can get Vega 100 Tablet with a prescription. Sildenafil citrate, the drug's active ingredient, is a sort of phosphodiesterase type 5 (PDE5) inhibitor. It helps get and keep an erection by boosting blood flow to the penis. The Vega 100 Tablet is made by Combitic Global Caplet Pvt Ltd.