Can I Take These?

Can You Take Losartan and Vitamin C Together?

No documented interaction was identified between vitamin C and losartan in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

See the full Losartan page and Vitamin C page for other reviewed interactions and reference information.

What the interaction means

Vitamin C's own NIH ODS fact sheet names only radiation therapy, chemotherapeutic agents, and statins as medication interactions -- losartan is none of these. Losartan's own FDA label does not mention vitamin C or ascorbic acid anywhere, including its Drug Interactions section.

No documented interaction was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.

Practical context

Both substances' own current authoritative sources were checked directly, full text, in both directions.

What the sources say

Vitamin C — Health Professional Fact Sheet — NIH Office of Dietary SupplementsLosartan Potassium Tablets — FDA Prescribing Information — Bryant Ranch Prepack (via DailyMed, U.S. National Library of Medicine)

Last reviewed 2026-08-24

Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.

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