You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. Can I get generic Cialis mailed to me? When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse. Refills: See if you can set up automatic refills or order as needed. We considered cost, medications available, and whether generic versions were offered to help reduce costs. Do I need a prescription for Tadalafil?Tadalafil (Cialis) is available both as brand-name and generic tablets. Common side effects of this medication include headache and indigestion. Tadalafil (Cialis) does interact with some medications. Reviewed by: Kristianne Hannemann, PharmD. Connie Zheng, PharmD. Last reviewed on April 11, savings_outlined. GoodRx . Compare prices and print coupons for Cialis (Tadalafil (Cialis)) and other drugs at CVS, Walgreens, and other pharmacies. Prices start at $ Tadalafil is the active ingredient in a branded drug called Cialis. Tadalafil is approved by the FDA to treat erectile dysfunction. It’s available from Lemonaid in 5mg, 10mg and 20mg strength. We don’t prescribe the mg dose.