At this time, doctors or pharmacists can be advised of medications or treatments prior to any previous major or minor surgery for the affected person. Do not take Cialis for erectile dysfunction if you are taking Adcirca for benign prostatic hyperplasia or pulmonary artery hypertension. In combination with sexual stimulation, tadalafil works by increasing blood flow to the penis to help a man get and maintain an erection. Tadalafil daily dose is available in two strengths, 2. What is the difference between Cialis and Tadalafil? Take tadalafil by mouth, with or without food, as directed by your doctor.Tadalafil is the generic name for Cialis. If you are taking it daily, it is about $11 for 30 tablets of tadalafil mg. Find information on tadalafil and cost, how generic and brand-name prices compare, what financial assistance is available, and more. Health Conditions Featured Breast Cancer IBD Migraine. 4 rows · Dosage (mg) Cost; Tadalafil: , 5, 10, and starting from around $11 can increase to.