Drug interactions
Dalfampridine + Metformin-pioglitazone
Severity: Moderate
Dalfampridine and Metformin-pioglitazone: 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
Both metformin and dalfampridine are eliminated by renal tubular secretion through OCT2. Competition for this pathway could raise exposure to either drug. Increased dalfampridine levels raise seizure risk, and increased metformin raises the risk of lactic acidosis, particularly in renal impairment.
What this interaction means in plain words
Dalfampridine and Metformin-pioglitazone 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.
Dalfampridine belongs to Central Nervous System; Metformin-pioglitazone belongs to Endocrine.
Why it happens
Competition for renal tubular secretion via OCT2, potentially reducing clearance of both drugs.
What to do
Check renal function before and during combined use and monitor for metformin adverse effects and for dalfampridine neurological effects such as seizures. Avoid the combination if creatinine clearance is reduced.
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?
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Other interactions of Metformin-pioglitazone
Other interactions of Dalfampridine
Frequently asked questions
Can I take Dalfampridine with Metformin-pioglitazone?
MediHelp rates the interaction as moderate. Dalfampridine and Metformin-pioglitazone 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. Both metformin and dalfampridine are eliminated by renal tubular secretion through OCT2. Competition for this pathway could raise exposure to either drug. Increased dalfampridine levels raise seizure risk, and increased metformin raises the risk of lactic acidosis, particularly in renal impairment.
How serious is the interaction between Dalfampridine and Metformin-pioglitazone?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check renal function before and during combined use and monitor for metformin adverse effects and for dalfampridine neurological effects such as seizures. Avoid the combination if creatinine clearance is reduced.
What other medicines interact with Metformin-pioglitazone?
MediHelp also lists interactions of Metformin-pioglitazone with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Metformin-pioglitazone page.
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