Vilitra 20 contains Vardenafil, which is used to treat erectile dysfunction. It works by increasing blood flow to the penis, helping to achieve and maintain an erection when sexually aroused. Typically taken about 30 to 60 minutes before sexual activity. It is not recommended to exceed the prescribed dose. Common side effects may include headaches, flushing, nasal congestion, dizziness, and indigestion. More serious side effects are rare but can occur. Consult a healthcare provider before use, especially if you have underlying health conditions or are taking other medications.