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Drug interactions

Duloxetine + Gabapentin enacarbil

Severity: Moderate

Duloxetine and Gabapentin enacarbil: 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

Gabapentin enacarbil is converted to gabapentin, which causes sedation, dizziness and respiratory depression, particularly with other CNS depressants. Duloxetine can also cause somnolence and dizziness, so the effects may add together and impair alertness and coordination.

What this interaction means in plain words

Duloxetine and Gabapentin enacarbil 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.

Duloxetine belongs to Central Nervous System; Gabapentin enacarbil belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive central nervous system depressant effects.

What to do

Use the lowest effective doses and titrate slowly. Monitor for sedation and, in patients with respiratory risk factors, for respiratory depression.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Duloxetine with Gabapentin enacarbil?

MediHelp rates the interaction as moderate. Duloxetine and Gabapentin enacarbil 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. Gabapentin enacarbil is converted to gabapentin, which causes sedation, dizziness and respiratory depression, particularly with other CNS depressants. Duloxetine can also cause somnolence and dizziness, so the effects may add together and impair alertness and coordination.

How serious is the interaction between Duloxetine and Gabapentin enacarbil?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and titrate slowly. Monitor for sedation and, in patients with respiratory risk factors, for respiratory depression.

What other medicines interact with Duloxetine?

MediHelp also lists interactions of Duloxetine with, for example, Isocarboxazid, Linezolid, Methylene blue. The full list is on the Duloxetine page.

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