https://thekamagrashop.net/how-fast-do-ed-medications-work How Fast Do Ed Medications Work? ED medications help alleviate erection problems. They do not cure the condition though. They relieve erection difficulties by enhancing the blood flow to the penile. They work only in the presence of sexual arousal. Four different ED medications are approved by the FDA. The time taken by each of these medications differs from another. This is so because they differ in their ingredient list and composition.