Formoterol and Mirabegron interaction
Formoterol and Mirabegron: the Formoterol prescribing label flags this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Formoterol (FORMOTEROL FUMARATE) label · effective 2020-12-15
The increased risk of asthma-related death is considered a class effect of the long-acting beta 2 -adrenergic agonists, including formoterol fumarate inhalation solution.
Excessive Use and Use with Other Long-Acting Beta 2 -Agonists As with other inhaled beta 2 -adrenergic drugs, formoterol fumarate inhalation solution should not be used more often, at higher doses than recommended, or in conjunction with other medications containing long-acting beta 2 -agonists, as an overdose may result.
Clinically significant cardiovascular effects and fatalities have been reported in association with excessive use of inhaled sympathomimetic drugs.
Paradoxical Bronchospasm As with other inhaled beta 2 -agonists, formoterol fumarate inhalation solution can produce paradoxical bronchospasm that may be life-threatening.
• Use with caution in patients with cardiovascular or convulsive disorders, thyrotoxicosis, or with sensitivity to sympathomimetic drugs.
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.