Generic Cialis 20mg l For natural erection supplements (Cialis) is used to treat erectile dysfunction (ED, impotence; inability to get or keep an ), and the symptoms of benign prostatic hyperplasia (BPH; an enlarged prostate) which includes difficulty urinating (hesitation, dribbling, weak stream, and incomplete bladder emptying), painful urination, and Cialis 20mg Tablet may be taken on an empty stomach or with a meal. It should be strictly taken as advised by your doctor. The medicine when taken for ED will only help you to get an erection if you are stimulated. It would help if you took it about one hour before you plan to have it. The time it takes to work varies from person to person, but it normally takes between 30 minutes and one hour. Only take it if you need it and a doctor has prescribed it.