Tadalift 20 mg contains tadalafil as the primary ingredient that is used in the treatment of erectile dysfunction or impotence that is generally found in men. Adding to this the medicine is also used to treat benign prostatic hypertrophy. But while the patient is on medication he also faces some side effects that include headache, eye pain, nasal congestion, tinnitus, loss of hearing, and many others. If the condition depletes then it is better that you should consult your doctor.