The table below summarizes the typical dosages for tadalafil: Indications of Tadalafil:. Many rogue pharmacies sell counterfeit or substandard products that can be harmful. If you become pregnant while taking tadalafil, call your doctor. Tadalafil does not prevent pregnancy or the spread of sexually transmitted diseases such as human immunodeficiency virus HIV. Tell your doctor if tadalafil is not working well or if you are experiencing side effects.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. AdSay Goodbye to Performance Anxiety and Hello to Improved Sexual Stamina! Trust Our Unbiased Reviews and Improve Your Sexual Health in Confidence!Over 20 Years Online · Over Products Tested · Honest & Unbiased Reviews. AdFind the Lowest Price for Your Prescription Meds and Save at Your Local Pharmacy Today! Save Up to 80% on Prescriptions at OSave up-to 80%Types: CVS Pharmacy, Walmart Pharmacy, Walgreens Pharmacy.