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Today, when patients are discharged from hospitals after an acute heart attack, they are regularly treated with beta-blocker drugs such as metoprolol and bisoprolol.

Her doctors had put her on a heart medication, metoprolol, but it has not helped.

I have been taking metoprolol succinate for years, and it works most of the time.

But diltiazem was out of stock, and when two other drugs — adenosine and metoprolol — didn’t work, Mr. Alsina was admitted overnight.

I underwent an ablation and was on the heart-rhythm-regulating medications flecainide and metoprolol.