单词	metoprolol
释义	metoprolol /mɪˈtɒprəlɒl / noun [mass noun] Medicine A beta-blocking drug related to propranolol, used to treat hypertension and angina.Beta blockers such as metoprolol or propranolol, for example, may cause nightmares.... Beta-blockers (nadolol, atenolol, metoprolol, propranolol, and others) reduce cardiac output (negative inotropic and chronotropic effects) but increase peripheral resistance. Beta blockers like propranolol or metoprolol also affect sleep. Origin 1970s: from met- (from methyl) + pro(prano)lol.
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