A primary consideration when choosing ED medications should be safety. This include evaluating the drug's efficacy, safety profile, and possible adverse effects. One drug in the PDE-5 inhibitor class, Cenforce 100mg, acts by increasing blood flow to the penile region. Medication for ED is essential for treating the illness. Generally speaking, they function by increasing blood flow to the penis, which facilitates erections. But not all ED medications are made equal, and safety is the top priority.