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Drug interactions

Gabapentin enacarbil + Levocetirizine

Severity: Moderate

Gabapentin enacarbil and Levocetirizine: 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, a gabapentin prodrug, causes somnolence and dizziness, and levocetirizine can add to sedation. Combined CNS depressants can increase the risk of respiratory depression, particularly in older or frail patients and those with lung disease.

What this interaction means in plain words

Gabapentin enacarbil and Levocetirizine 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 belongs to Central Nervous System; Levocetirizine belongs to Respiratory.

Evidence level: Moderate

Why it happens

Additive CNS depression through different pharmacodynamic pathways.

What to do

Use the lowest effective doses and monitor for sedation and respiratory depression, especially in patients with respiratory compromise. Advise against driving until the combined effect is known.

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 Gabapentin enacarbil with Levocetirizine?

MediHelp rates the interaction as moderate. Gabapentin enacarbil and Levocetirizine 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, a gabapentin prodrug, causes somnolence and dizziness, and levocetirizine can add to sedation. Combined CNS depressants can increase the risk of respiratory depression, particularly in older or frail patients and those with lung disease.

How serious is the interaction between Gabapentin enacarbil and Levocetirizine?

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 monitor for sedation and respiratory depression, especially in patients with respiratory compromise. Advise against driving until the combined effect is known.

What other medicines interact with Levocetirizine?

MediHelp also lists interactions of Levocetirizine with, for example, Acrivastine, Asenapine transdermal, Avapritinib. The full list is on the Levocetirizine page.

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