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an erection that won't disappear (priapism). In case you have an erection that lasts more than four hrs, get health-related aid immediately. If It isn't treated without delay, priapism can completely hurt your penis.Il tadalafil può inibire debolmente anche la fosfodiesterasi di tipo 6 (PDE6; seven-hundred volte meno potente sulla PDE6 rispetto al