Before taking tadalafil, tell your doctor and pharmacist if you are allergic to tadalafil, any other medications, or any of the ingredients in tadalafil tablets. Brand names Why is this medication prescribed? Cialis can help achieve an erection when sexual stimulation occurs. Without physical action to the penis, such as that occurring during sexual intercourse, tadalafil will not work to cause an erection. Continue to take tadalafil even if you feel well. Stop using tadalafil and call your doctor at once if you have: heart attack symptoms–chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating; vision changes or sudden vision loss; ringing in your ears or sudden hearing loss; or an erection is painful or lasts longer than 4 hours prolonged erection can damage the penis.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. · Find everything you need to know about Cialis (Tadalafil), including what it is used for, warnings, reviews, side effects, and interactions. Learn more about Cialis (Tadalafil) at test1.ru · Cialis (tadalafil) is prescribed to treat erectile dysfunction and symptoms of benign prostatic hyperplasia. It comes as a tablet that’s taken as needed or once per day, depending on the.