Vilitra 10 has been used to treat erectile dysfunction. The drug contains a steroid called vardenafil. The use of this drug slowly loosens the muscles in the body and increases blood flow to the muscles. So that erection can be easily achieved and prolonged during sexual intercourse. These tablets should be taken only once a day otherwise it may cause side effects. The effect of this drug is usually within 30-40 minutes and lasts for 4-6 hours. This medicine is 100% safe and prescription medicine.