Does Niacin Interact with Bile Acid Binding Resins?
Niacin and Bile Acid Binding Resins have a moderate drug interaction according to U.S. FDA drug labeling data. Bile acid sequestrants have high niacin-binding capacity; should be taken at least 4-6 hours before niacin extended-release tablets. The mechanism involves high niacin-binding capacity of bile acid sequestrants. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Moderate
- Niacin Class
- Nicotinic Acid
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Niacin and Bile Acid Binding Resins occurs because high niacin-binding capacity of bile acid sequestrants. Clinically, this means bile acid sequestrants have high niacin-binding capacity; should be taken at least 4-6 hours before niacin extended-release tablets. This is classified as a moderate interaction. While it may not require stopping either medication, your healthcare provider should be aware you are taking both so they can monitor for potential effects and adjust treatment if necessary.
What To Tell Your Doctor or Pharmacist
If you are taking Niacin and your doctor is considering prescribing Bile Acid Binding Resins (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider