Niacin

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

24 interactions 109 cited references

Also sold as: Endur-Acin Endur-Amide Niacor Niacor® Niaspan Niaspan® Nicolar® Slo-Niacin Slo-Niacin®

About Niacin

Niacin is a B-complex vitamin used to lower cholesterol and triglycerides and prevent niacin deficiency. Read the full Niacin drug information page →

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Aug 10, 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 →

Most serious with: Cerivastatin Insulin Icodec-Abae Rosuvastatin Pitavastatin Levoketoconazole Insulin Aspart, Recombinant

14 Major 6 Moderate 4 Minor

All (24) Major (14) Moderate (6) Minor (4)

Minor

Niacin Cholestyramine Resin Locholest® Decreased nicotinic acid exposure Details Niacin Colesevelam Welchol Decreased nicotinic acid exposure Details Niacin Colestipol Colestid Decreased nicotinic acid exposure Details Niacin Cholestyramine Prevalite Decreased nicotinic acid exposure 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.