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A 70-year-old female asked:

Switching from metoprol tartrate 2x daily to generic toprol xl succinate 1x day for arrythmia. will the succinate start to work right away after taking it? my heart gets inpatient when metoprolol isn't administered on time (!?

1 doctor answer1 doctor weighed in
Dr. David Ellis
Family Medicine 44 years experience
Metoprolol : The transition from the shorter acting forms of metoprolol to the longer acting forms like Toprol should be generally smooth as long as the medication is taken daily and as prescribed. If you have questions about this transition you should consult the doctor who prescribed the medication.
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Last updated Feb 1, 2021


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