Silvitra 120 is a fertility drug containing 100mg of sildenafil citrate and 20mg of vardenafil. It is used medicinally to treat erectile dysfunction (ED) in men. Drugs were produced for RSMs efforts. The mechanisms of action of the two drugs are similar. This allows men to stand up. The drug is a PDE5 inhibitor that helps increase cGMP and nitric oxide levels in the body. Good sexual performance helps men get erections.