A prescription medicine called Zudena 100 mg tablet contains Udenafil and is intended to treat erectile dysfunction in men. This medicine is a member of the class of phosphodiesterase type 5 inhibitors. Udenafil facilitates and sustains erections during sexual stimulation by increasing blood flow to the penis. Additionally, it increases confidence and improves the sex experience. Taking it with or without food is possible. Alcohol should be used sparingly, though, as too much of it might worsen side effects and decrease the medication's effectiveness.