Miglitol and Pioglitazone and metformin interaction
Miglitol and Pioglitazone and metformin: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Pioglitazone and metformin (Actoplus Met) label · effective 2026-08-21
Congestive Heart Failure Pioglitazone, like other thiazolidinediones, can cause dose-related fluid retention when used alone or in combination with other antidiabetic medications and is most common when pioglitazone is used in combination with insulin.
From the Miglitol label · effective 2022-04-01
The effect of miglitol (100 mg 3 times daily for 7 days) on the pharmacokinetics of a single 1000 mg dose of metformin was investigated in healthy volunteers.
Mean AUC and C max values for metformin were 12% to 13% lower when the volunteers were given miglitol as compared with placebo, but this difference was not statistically significant.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.