Individuals with “crowded” optic disc are also considered at greater risk for NAION compared to the general population; however, evidence is insufficient to support screening of prospective users of PDE5 inhibitors, including CIALIS, for this uncommon condition. To get a prescription, all you have to do is discuss your situation with a licensed healthcare practitioner who can determine if it is an appropriate medication for you. You can buy it from a store-based pharmacy or reputable online pharmacy with a prescription. Then, you can order Cialis directly through Felix, and our network of pharmacies will fill it and mail it to your home. Cialis is also available in a smaller daily dose 2. All you have to do is create an account and complete an online visit to get started. Cialis works by increasing blood flow to the penis so you can get and keep an erection.Vision changes. Muscle pain. But there are some differences. With Viagra, there is a higher risk of vision changes than with Cialis. Among people who take Viagra or sildenafil, 3% get blue vision that lasts a few hours. On the other hand, Cialis has a slightly higher risk of muscle pain than Viagra and vardenafil. This PDF document provides the full prescribing information for Cialis (tadalafil), a drug used to treat erectile dysfunction and benign prostatic hyperplasia. It includes indications, dosage, warnings, interactions, adverse reactions, and clinical studies. CIALIS VIAGRA. Toll Free Phone: Toll Free Fax: 24 hours / 7 days a week. See what customers have to say about our products and .