Evaluation of erectile dysfunction and BPH should include an appropriate medical assessment to identify potential underlying causes, as well as treatment options. Patients who experience symptoms upon initiation of sexual activity should be advised to refrain from further sexual activity and seek immediate medical attention. Patients should seek prompt medical attention if their erection lasts longer than four hours. We will ask about your experience with generic Cialis as part of your visit. Tadalafil is the active ingredient in a branded drug called Cialis. Take all of the tablets for your daily dose at one time each day; do not divide the tablets to take as separate doses. What side effects can this medication cause?CIALIS for Use as Needed. Creatinine clearance 30 to 50 mL/min: A starting dose of 5 mg not more than once per day is recommended, and the maximum dose is 10 mg not more than once in every 48 hours. Creatinine clearance less than 30 mL/min or on hemodialysis: The maximum dose is 5 mg not more than once in every 72 hours [see . Patients should not use CIALIS if sex is inadvisable due to cardiovascular status ().Use of CIALIS with alpha-blockers, antihypertensives or substantial amounts of alcohol (≥5 units) may lead to hypotension (, ).CIALIS is not recommended in combination with alpha-blockers for the treatment of BPH because efficacy of the . Buy online with free shipping. Adelaide Apothecary. Free shipping $ chevron_right. Buy online. Pay undefined at DiRx. Buy online with free shipping. DiRx. Free shipping $ The brand version of Cialis can be expensive. Five tablets of Cialis 10 mg is about $ with GoodRx. The generic version is more affordable at about $6.