Metoprolol is a prescription medication belonging to a class of drugs called beta-blockers. Specifically, it is a cardioselective beta-1 adrenergic blocker, meaning it primarily affects beta-1 receptors in the heart. Metoprolol is commonly prescribed to manage various cardiovascular conditions, including hypertension (high blood pressure), angina pectoris (chest pain), and to improve survival after a heart attack (myocardial infarction). It is also used to treat certain heart rhythm disorders and can be part of the treatment regimen for heart failure. Metoprolol is available in two main forms: metoprolol tartrate (immediate-release) and metoprolol succinate (extended-release). The extended-release formulation often allows for once-daily dosing, which can improve patient adherence. As a controlled medication, the dosage for Metoprolol must be set by a licensed clinician. (FDA label, DrugBank)
Deep dive
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Known interactions
Category rule: supplement × medication
Note
Some supplements change how the body processes medications (absorption, liver enzymes, or additive effects).
Specific pairs are checked against a licensed drug database and shown with their own severity. Always confirm with your provider or pharmacist.
Category rule: vitamin × medication
Note
Certain vitamins interact with specific medications (e.g., vitamin K with blood thinners).
Specific pairs are checked against a licensed source; confirm with your provider.
Compound-pair rule
Caution
Both drugs can lower heart rate and blood pressure. Combining raises risk of bradycardia, dizziness, and falls.
Check pulse and BP at home. Report a resting pulse under 55 or dizziness.
Frequently asked
Sources referenced
["FDA label (U.S. Food and Drug Administration)", "DrugBank", "NIH ODS (National Institutes of Health - Office of Dietary Supplements)", "MedlinePlus (National Library of Medicine)", "Mayo Clinic", "EMA SmPC (European Medicines Agency - Summary of Product Characteristics)", "Cochrane Library", "PubChem (National Center for Biotechnology Information)"]
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
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