I think that there are many who have stopped and are fine because the blockers are only insurance against recurrence and that is where it becomes difficult for most of us. You may be completely cancer-free and it never recur and so taking the meds is pointless. You may have cancer cells readying themselves, take the meds and they don't stop recurrence. Or you may be one of that group in the middle for whom the meds prevent or drastically slow the cancer cells activity. At present, as far as I'm aware, there is no test to show which group you are in, just a statistical likelihood. You really need to make the call that is right for you because you're the one who has to live with the outcome. Whatever you choose, it must be without regret (or at least with the knowledge that it was YOUR best choice). Best wishes.