Cenforce 100 mg (Generic Viagra) is a drug that works like Viagra. However, the price of Sildenafil Citrate is much lower and the results are exactly what we want. Cenforce 100 (Sildenafil Citrate Side Effects) is prescribed for adult men to treat erectile dysfunction problems. This potent drug contains sildenafil citrate, the active ingredient associated with Viagra. It is available as a round blue tablet for oral administration.