Magnesium citrate is a magnesium preparation commonly used as a dietary supplement and a laxative. It is the magnesium salt of citric acid. As an oral supplement, it aims to increase magnesium levels in the body. As a laxative, it works by drawing water into the intestines, which softens the stool and promotes bowel movements. It is available over-the-counter in various forms, including liquids, capsules, and powders. (MedlinePlus)
Deep dive
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Known interactions
Compound-pair rule
Caution
Divalent cations chelate levothyroxine in the gut and reduce absorption by up to 30%.
Take levothyroxine on empty stomach; separate mineral supplements by at least 4 hours.
Suggested separation: 4 h
Compound-pair rule
Caution
Divalent cations chelate levothyroxine in the gut and reduce absorption by up to 30%.
Take levothyroxine on empty stomach; separate mineral supplements by at least 4 hours.
Suggested separation: 4 h
Compound-pair rule
Caution
Divalent cations chelate levothyroxine in the gut and reduce absorption by up to 30%.
Take levothyroxine on empty stomach; separate mineral supplements by at least 4 hours.
Suggested separation: 4 h
Compound-pair rule
Caution
Divalent cations chelate levothyroxine in the gut and reduce absorption by up to 30%.
Take levothyroxine on empty stomach; separate mineral supplements by at least 4 hours.
Suggested separation: 4 h
Frequently asked
Sources referenced
["MedlinePlus (National Library of Medicine)", "NIH Office of Dietary Supplements (ODS)", "DrugBank", "Cochrane Library", "U.S. Food and Drug Administration (FDA) label", "European Medicines Agency (EMA) Summary of Product Characteristics (SmPC)"]
DoseRoutine compiles summaries from publicly available scientific and regulatory references. Always verify important decisions with a licensed clinician.
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