Tadalis is most commonly used for treatment of erectile dysfunction. It is also used for the urinary symptoms cause due to an enlargement of the prostate gland in old men. Tadalis 20 mg tablets should be taken before 30 minutes of sexual activities. It can be taken with or without food it depends on health. It helps to improve the symptoms of BPH such as increased urinary frequency, difficulty in urination, slow urine stream etc.