Staxyn is an orally administered drug that contains vardenafil. Staxyn is used in treating erectile dysfunction in men. Staxyn helps a man who suffers from erectile dysfunction to get and maintain an erection during sexual intercourse. Staxyn helps in sexual stimulation, but it does not enhance sexual desire.Staxyn is a prescription drug that is indicated for the treatment of sexual function problems like erectile dysfunction or impotence. Staxyn is used to together with sexual stimulation. Staxyn is in a class of medicines known as phosphodiesterase-5 (PDE5) inhibitors and works by increasing the amount of blood that reaches the penis. By increasing blood flow to the penis, Staxyn helps users get and maintain an erection that is firm enough for penetration. Staxyn does not offer protection against sexually transmitted diseases such syphilis, gonorrhea and HIV. Use protection whenever you are having sex. Also, avoid eating or drinking grapefruit juice while taking Staxyn. Grapefruit increases the risk of side effects and reduces efficacy when used with Staxyn.