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Does Miglitol Interact with Metformin?

Miglitol and Metformin have a minor drug interaction according to U.S. FDA drug labeling data. Miglitol reduced mean AUC and Cmax values for metformin by 12-13%, but this difference was not statistically significant. 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
Minor
Miglitol Class
alpha-Glucosidase Inhibitor
Management
Generally manageable
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Miglitol and your doctor is considering prescribing Metformin (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
  • Never stop or change either medication without first consulting your healthcare provider
💊 Miglitol(Miglitol)+💊 Metformin(Kazano)

Severity & Interaction Details

✅
minor
Generally safe — minor interaction
Low clinical significance. Routine awareness is usually sufficient.
Severity scale
MinorContra
On record
Yes
Drug A class
alpha-Glucosidase Inhibitor
Drug B class
—
Source
NLP:miglitol

What this means in plain English

Miglitol reduced mean AUC and Cmax values for metformin by 12-13%, but this difference was not statistically significant.

About Miglitol and Metformin

Miglitol is an alpha-Glucosidase Inhibitor. Metformin is also sold under the brand name Kazano. Both medications are taken by mouth. Metformin additionally carries an FDA boxed warning, the FDA's strongest safety alert.

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.