It is more probably that missed doses or abruptly stopping Xanax can cause swift withdrawal effects, which includes anxiety, sleeplessness, and worry attacks.Thu?c Xanax không ???c khuyên dùng cho ??i t??ng b?nh nhân là ph? n? ?ang mang thai vì có th? gây ?nh h??ng ??n bào thai trong b?ng m?. N?u c?n thi?t ph?i dùng thu?c trong m?t s? tr?