Skip to content

Drug interactions

Gabapentin + Trazodone

Severity: Moderate

Gabapentin and Trazodone: 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 drugs cause sedation and dizziness, so combining them can lead to excessive drowsiness and impaired psychomotor function. Respiratory depression is a concern mainly in elderly or respiratory-compromised patients or with other CNS depressants.

What this interaction means in plain words

Gabapentin and Trazodone 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 belongs to Central Nervous System; Trazodone belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Additive CNS depressant effects.

What to do

Use the lowest effective doses and titrate gradually, monitoring for sedation and respiratory depression. Give extra care to elderly patients and those with COPD or on opioids.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Gabapentin and Trazodone, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 14 days on the web. No card needed.

Frequently asked questions

Can I take Gabapentin with Trazodone?

MediHelp rates the interaction as moderate. Gabapentin and Trazodone 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 drugs cause sedation and dizziness, so combining them can lead to excessive drowsiness and impaired psychomotor function. Respiratory depression is a concern mainly in elderly or respiratory-compromised patients or with other CNS depressants.

How serious is the interaction between Gabapentin and Trazodone?

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 gradually, monitoring for sedation and respiratory depression. Give extra care to elderly patients and those with COPD or on opioids.

What other medicines interact with Trazodone?

MediHelp also lists interactions of Trazodone with, for example, Arsenic trioxide, Ibutilide, Isocarboxazid. The full list is on the Trazodone page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in