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编辑部医生:我患有房颤约有一年了,在服用一种β受体阻滞剂(美托洛尔)和地高辛后觉得很正常。然而,最近我开始觉得非常疲惫,并注意到我的心率只有每分钟约35次。当我停服这些药物后心跳就上来了。这些天我感觉好多了。服用这些药物有危险吗?读者:谢女士谢女士:您好。不能说这些药是危险的,但是就你所知,什么东西太多了都不是一件好事。β-受体阻滞剂和地高辛这两种药物都能减慢心脏中电的传导活动,以防止心跳太快和效率低下(例如,经常保持每分钟80～100次心跳)。然而,如果你吃的这
EDITOR’S NOTE: I am suffering from atrial fibrillation for about a year and are feeling normal after taking a beta-blocker (metoprolol) and digoxin. However, lately I started to feel very tired and noticed that my heart rate was only about 35 times per minute. My heart beat up when I stopped taking these medications. I feel much better these days. Is it dangerous to take these medications? Readers: Ms. Xie Ms. Xie: Hello. It can not be said that these drugs are dangerous, but as far as you know, it is not a good thing to have too many things. Both beta-blockers and digoxin slow down the mesangial conduction activity in your heart to prevent heartbeats from becoming too fast and inefficient (for example, often keeping 80 to 100 beats per minute). However, if you eat this