Drug interactions
Dalfampridine + Glyburide-metformin
Severity: Moderate
Dalfampridine and Glyburide-metformin: 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 through renal tubular secretion by OCT2. Competition could raise exposure of either drug, and higher dalfampridine levels increase seizure risk, particularly in renal impairment.
What this interaction means in plain words
Dalfampridine and Glyburide-metformin 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; Glyburide-metformin belongs to Endocrine.
Why it happens
Competition for renal tubular secretion via OCT2 may reduce clearance of both drugs.
What to do
Check renal function before and during combined use. Watch for seizures or neurologic effects and for metformin adverse effects such as gastrointestinal symptoms.
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 Glyburide-metformin
Other interactions of Dalfampridine
Frequently asked questions
Can I take Dalfampridine with Glyburide-metformin?
MediHelp rates the interaction as moderate. Dalfampridine and Glyburide-metformin 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 through renal tubular secretion by OCT2. Competition could raise exposure of either drug, and higher dalfampridine levels increase seizure risk, particularly in renal impairment.
How serious is the interaction between Dalfampridine and Glyburide-metformin?
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. Watch for seizures or neurologic effects and for metformin adverse effects such as gastrointestinal symptoms.
What other medicines interact with Glyburide-metformin?
MediHelp also lists interactions of Glyburide-metformin with, for example, Bosentan, Cholic acid, Clarithromycin. The full list is on the Glyburide-metformin page.
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