For treatment of erectile dysfunction as needed : Adults—10 milligrams mg as a single dose, no more than once a day, taken 30 minutes before you think sexual activity may occur. Medigap does not cover prescription drugs; therefore, it does not cover Cialis What a Medigap plan can do is cover your out of pocket costs for the pump mentioned above. For oral dosage form tablets : For treatment of benign prostatic hyperplasia daily use : Adults—5 milligrams mg as a single dose, no more than once a day, taken at the same time each day. Take both tablets at the same time each day. This medicine comes with a patient information leaflet. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.Find prices and information on Erectile Dysfunction medications. Read our guide to Erectile Dysfunction. It is available in both brand and generic versions. Cialis is not covered by . The cost for Cialis oral tablet mg is around $ for a supply of 30 tablets, depending on the pharmacy you visit. Quoted prices are for cash-paying customers and are not . Pros and cons at a glance Below are some advantages and disadvantages of tadalafil. Pros available in a generic form, which is cheaper than brand-name drugs .