Drug interactions
Dapagliflozin-metformin + Niacin
Severity: Moderate
Dapagliflozin-metformin and Niacin: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Niacin, especially at lipid-lowering doses, can worsen insulin resistance and raise blood glucose. This may reduce the effectiveness of antidiabetic therapy.
What this interaction means in plain words
Dapagliflozin-metformin and Niacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Dapagliflozin-metformin belongs to Endocrine; Niacin belongs to Cardiovascular.
Why it happens
Pharmacodynamic antagonism through niacin-induced insulin resistance and increased hepatic glucose output.
What to do
Monitor glucose and HbA1c after starting or increasing niacin and increase antidiabetic therapy if needed. Reassess glucose when niacin is stopped.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dapagliflozin-metformin and Niacin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Dapagliflozin-metformin
Other interactions of Niacin
- Alogliptin-metformin + Niacin Moderate
- Atorvastatin + Niacin Moderate
- Canagliflozin-metformin + Niacin Moderate
- Cholestyramine + Niacin Moderate
- Colestipol + Niacin Moderate
- Empagliflozin-metformin + Niacin Moderate
Frequently asked questions
Can I take Dapagliflozin-metformin with Niacin?
MediHelp rates the interaction as moderate. Dapagliflozin-metformin and Niacin can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Niacin, especially at lipid-lowering doses, can worsen insulin resistance and raise blood glucose. This may reduce the effectiveness of antidiabetic therapy.
How serious is the interaction between Dapagliflozin-metformin and Niacin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor glucose and HbA1c after starting or increasing niacin and increase antidiabetic therapy if needed. Reassess glucose when niacin is stopped.
What other medicines interact with Dapagliflozin-metformin?
MediHelp also lists interactions of Dapagliflozin-metformin with, for example, Contrast media, Diatrizoate, Diatrizoate meglumine / diatrizoate. The full list is on the Dapagliflozin-metformin page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
