People given a blood pressure drug known as a beta blocker to reduce heart risks before surgery were one-third more likely to die within a month and had double the risk of stroke compared with those given a dummy pill, Canadian researchers said on Monday.

Imagine, they actually decided to have a clinical trial of this use of the beta blocker drugs instead of just assuming that it would have a given beneficial effect. Imagine if they did that with all the drugs. A LOT of medical assumptions would get shattered like glass.


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