Cialis is a 20 mg medication used to treat Erectile Dysfunction, enabling men to attain and sustain an erection suitable for intimate activity. Additionally, it alleviates symptoms associated with an enlarged prostate, including urinary difficulties whole day & night. For the treatment of ED, the standard dosage is 10 mg, taken at least 30 minutes prior to intimate activity, with the option to adjust to 20 mg or 5 mg based on individual response and tolerance.