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Can metoprolo tartrate 50mg cause serious conditions to people with asthma?

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Marvell 19 Jan 2014

This is what could happen to a patient with asthma, taking metoprolol.

In general, beta-adrenergic receptor blocking agents (i.e., beta-blockers) should not be used in patients with bronchospastic diseases. Beta blockade may adversely affect pulmonary function by counteracting the bronchodilation produced by catecholamine stimulation of beta-2 receptors. If beta-blocker therapy is necessary in these patients, an agent with beta-1 selectivity (e.g., atenolol, metoprolol, betaxolol) is considered safer, but should be used with caution nonetheless. Cardioselectivity is not absolute and can be lost with larger doses.

https://www.drugs.com/disease-interactions/metoprolol.html#Asthma_Copd

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