When confronting erectile dysfunction, men often turn to medications like Sildenafil and Tadalafil for help. Both function through increasing blood flow to the penis, but they differ in how long they last. https://medium.com/@240-area-code/scientifically-proven-ways-to-make-sildenafil-and-tadalafil-work-again-according-to-a-urologist-8966273db36b