Cialis Dosages The most appropriate Cialis dose for you will depend on your needs, your healthcare provider’s assessment and how well you respond to the medication. When you feel sexually aroused, blood flows to your corpora cavernosa — the soft, sponge-like erectile tissue inside your penis — causing it to become firm and enlarged. BPH is common in older men. If you forget to take Cialis, take the missed dose as soon as you remember. 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.Compare prices and print coupons for Cialis (Tadalafil (Cialis)) and other drugs at CVS, Walgreens, and other pharmacies. Prices start at $ Cialis Prices, Coupons & Savings Tips – MDRx. DRUG_DESCRPTION Compare DRUG_NAME prices and find coupons that could save you up to 80% instantly at . Cialis (tadalafil) is a prescription medication for those with erectile dysfunction. Target (CVS) $ CVS Pharmacy: $ Walgreens: $ Cialis is considerably more expensive than its.