Talk to your doctor about which dosing schedule is right for you. What side effects can this medication cause? 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. What alternatives can I use for erectile dysfunction? Symptoms may include sudden urges to urinate urgency , difficulty in starting urination hesitancy , a weak urine stream, and more frequent urination — especially at night. If you take nitrates in any form, or are on treatment for pulmonary hypertension , you should not take tadalafil.Both treatment options are available in doses of 5, 10, and 20 mg. The costs are: Cialis: A prescription of 30 Cialis pills costs $ Tadalafil: 30 tadalafil pills are available for $ Cialis (branded Tadalafil) Cialis is a reliable, branded ED treatment that lasts up to 36hrs. Can be taken with food. Works in 30mins, lasts up to 36hrs. Works for 80% of men. 10mg 20mg. 4 tablets. Out of stock. 8 tablets. 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.