Tadalafil may cause side effects. Knowledge is Power It’s imperative to consult a healthcare professional before starting any medication, including Cialis. The effects may be increased because of slower removal of the medicine from the body. Oral medicines for ED usually work well and cause few side effects. If you are taking tadalafil for erectile dysfunction on a regular schedule, take the missed dose as soon as you remember it. They’re often the first line of treatment for trouble getting or keeping an erection, called erectile dysfunction ED. Brand-name versions of the drug approved for PAH include Adcirca.Tadalafil (Cialis) is used to treat erectile dysfunction (ED, impotence; inability to get or keep an erection), and the symptoms of benign prostatic hyperplasia (BPH; an enlarged prostate) which include difficulty urinating (hesitation, dribbling, weak stream, and incomplete bladder emptying), painful urination, and urinary frequency and urgency in adult men. Generic Cialis is called tadalafil, which is the active ingredient in Cialis. Cialis is Food and Drug Administration (FDA) approved to treat erectile dysfunction (ED) and benign prostatic. No, while this is often a misunderstanding of the effects of Cialis, this medication doesn’t cause an erection all on its own or cause you to have an erection long past the point of orgasm. People with ED symptoms are frequently unable to have a full erection when sexually aroused. Taking Cialis helps inhibit the See more.