Your healthcare provider will discuss which dose is right for you. In our latest question and answer, we discuss whether or not generic Cialis Tadalafil is as effective as the brand as well as dosing information. There is also the option to take Cialis as needed. Which Is More Effective? D Oct 19, Does generic Cialis work just like the original? It is becoming more and more common to see people taking the 5mg dose once daily as there is no need to take a dose immediately before sexual activity like other erectile dysfunction drugs such as Viagra. It would be rare that the ingredients in the generic drug would cause it to work differently in someone, but it can happen.Cialis is available as the generic drug tadalafil. A generic drug is an exact copy of the active drug in a brand-name medication and is considered just as safe and . Is generic Cialis or tadalafil as effective as Cialis? Cialis and tadalafil are equally effective. The FDA works to ensure that the generic versions of all brand-name . Drug Facts Common Brands Cialis Drug Class PDE-5 inhibitor Controlled Substance Classification Not a controlled medication Generic Status No lower-cost .