It’s available in 25 mg, 50 mg, and mg tablets and lasts up to 18 hours. The icon means that this online pharmacy accredited by PharmacyChecker fills prescription orders through either their own pharmacy or dispensing pharmacy partners located in Australia, India, Mauritius, New Zealand, Turkey, the UK, or Canada. Please note that all PharmacyChecker-accredited online pharmacies tier 1 and non-tier 1 meet the same high standards as identified in the PharmacyChecker Verification Program. You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. That’s not to say there aren’t just as many illegitimate sites. All PDE5 inhibitors, including Viagra and Cialis, require a valid prescription regardless of the pharmacy or provider.Published on October 18, warning This article is no longer being updated and some information may not be current. Visit the GoodRx Healthhomepage for our latest articles. . Tadalafil is used to treat male sexual function problems (impotence or erectile dysfunction-ED). Learn more about Cialis oral. 1. This is a generic drug. The average cost for 30 . Yes, Cialis is available as a generic medication called tadalafil. Generic medications are just as effective as the brand. Tadalafil 10 mg is available for about $10 for 10 tablets with GoodRx. See more.