Drug interactions
Dalfampridine + Dolutegravir
Severity: Moderate
Dalfampridine and Dolutegravir: 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
Dolutegravir inhibits renal tubular transporters OCT2 and MATE1 and may raise dalfampridine concentrations, which are renally eliminated. Higher levels increase the risk of seizures, a dose-related adverse effect of dalfampridine.
What this interaction means in plain words
Dalfampridine and Dolutegravir 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; Dolutegravir belongs to Anti Virals.
Why it happens
Inhibition of OCT2/MATE1-mediated renal tubular secretion by dolutegravir reduces dalfampridine clearance.
What to do
Monitor for dalfampridine adverse effects, especially seizures, and avoid use if renal function is impaired; consider an alternative if seizure risk is a concern.
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 Dolutegravir
Other interactions of Dalfampridine
Frequently asked questions
Can I take Dalfampridine with Dolutegravir?
MediHelp rates the interaction as moderate. Dalfampridine and Dolutegravir 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. Dolutegravir inhibits renal tubular transporters OCT2 and MATE1 and may raise dalfampridine concentrations, which are renally eliminated. Higher levels increase the risk of seizures, a dose-related adverse effect of dalfampridine.
How serious is the interaction between Dalfampridine and Dolutegravir?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for dalfampridine adverse effects, especially seizures, and avoid use if renal function is impaired; consider an alternative if seizure risk is a concern.
What other medicines interact with Dolutegravir?
MediHelp also lists interactions of Dolutegravir with, for example, Dofetilide, Aluminum hydroxide, Atidarsagene autotemcel. The full list is on the Dolutegravir page.
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