A small number of patients taking Cialis also reported abnormal vision. The table below summarizes the typical dosages for tadalafil: Indications of Tadalafil:. Cialis is not recommended for people taking any form of nitroglycerin because the combination may lower blood pressure to an unsafe level. Tadalafil is not recommended in patients with severe hepatic dysfunction. Benign prostatic hypertrophy is a condition in which the prostate gland becomes enlarged, obstructing the free flow of urine. Interestingly, Cialis has been more linked to improved self-esteem and other psychological factors than the other PDE5 medications. Alternatively, Cialis may be prescribed as an as-needed treatment for ED, to be taken before sexual activity.AdComplete the Online Consultation with our Doctor. Personalize Your Needs. If Appropriate, Get a Prescription for ED from RexMD®. Free Shipping AvailableFree Shipping · Discreet Packaging · Real Doctors · Personalized PlanTypes: Hair Growth · MEDICATIONS · Immune Support · Erectile Dysfunction · Sertraline. AdGet Deals and Low Prices On ed mens pills At Amazon. Grab Exciting Offers and Discounts On an Array Of Products From Popular Brands. Uses. Tadalafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). In combination with sexual stimulation, tadalafil works by increasing blood flow to the penis.