Thiamine

Name: Thiamine Drug Interactions
Creator: Dr. Brian Staiger, PharmD, BCPS

5 interactions

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Aug 8, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

5 Moderate

All (5) Moderate (5)

Moderate

Thiamine Capecitabine Xeloda Reduced thiamine exposure Details Thiamine Fluorouracil Adrucil Reduced thiamine exposure Details Thiamine Fluorouracil Injection Adrucil Reduced thiamine exposure Details Thiamine Fluorouracil Topical Carac Reduced thiamine exposure Details Thiamine Patiromer Veltassa Reduced thiamine exposure and reduced efficacy of thiamine Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.