It works by increasing blood flow to the penis, leading to a more rigid erection. Snovitra Professional 20 Mg is an erectile dysfunction medication that helps to improve erection hardness and duration. It works by increasing blood flow to the penis, leading to a more rigid erection. The tablet is taken orally and can be taken with or without food. It should be taken approximately 1 hour before sexual activity. This medication should not be taken more than once per day. It is not recommended for men with a history of heart disease, high blood pressure, high cholesterol, or diabetes.