Pioglitazone and metformin and Repaglinide interaction

Pioglitazone and metformin and Repaglinide: both prescribing labels describe an interaction that usually calls for monitoring, a dose change, or spacing the doses.

Moderate

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

Moderate

Hypoglycemia: Consider a lower dose of insulin or insulin secretagogue to reduce risk of hypoglycemia when used in combination with ACTOPLUS MET.

Warnings and precautionsby drug classView label on DailyMed
Moderate

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.

Warnings and precautionsby drug classView label on DailyMed
Moderate

Hypoglycemia with Concomitant Use with Insulin or Insulin Secretagogues Insulin and insulin secretagogues, such as sulfonylureas, are known to cause hypoglycemia.

Warnings and precautionsby drug classView label on DailyMed
Moderate

Therefore, a lower dosage of insulin or insulin secretagogue may be required to minimize the risk of hypoglycemia when used in combination with ACTOPLUS MET [see Drug Interactions (7.6 , 7.7) ] .

Warnings and precautionsby drug classView label on DailyMed
Moderate

Use of insulin secretagogues or insulin use may increase the risk for hypoglycemia and may require dose reduction.

Drug interactionsby drug classView label on DailyMed

From the Repaglinide label · effective 2025-05-02

Moderate

Factors which may increase the risk of hypoglycemia include changes in meal pattern (e.g., macronutrient content), changes in level of physical activity, changes to co-administered medication [see Drug Interactions (7) ] , and concomitant use with other antidiabetic agents.

Warnings and precautionsby drug classView label on DailyMed
Moderate

Drugs That May Decrease the Blood Glucose Lowering Effect of Repaglinide Tablets Intervention: Repaglinide tablets dose increases and increased frequency of glucose monitoring may be required when co-administered.

Drug interactionsby drug classView label on DailyMed
Moderate

CYP2C8 and CYP3A4 Inducers and Drugs That May Decrease the Blood Glucose Lowering Effect of repaglinide tablets : Co-administration may require repaglinide tablets dose increases and increased frequency of glucose monitoring ( 7 )

Drug interactionsby drug classView label on DailyMed
Minor

Examples: Antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, nonsteroidal anti-inflammatory agents (NSAIDs), pentoxifylline, pramlintide, propoxyphene, salicylates, somatostatin analogs (e.g., octreotide), and sulfonamide antibiotics.

Drug interactionsby drug classView label on DailyMed

Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.

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Not 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.