Drug interactions
Cetirizine + Gabapentin enacarbil
Severity: Minor
Cetirizine and Gabapentin enacarbil: minor 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 somnolence and dizziness and can contribute to respiratory depression when combined with other CNS depressants. Cetirizine is minimally sedating but may add to drowsiness in susceptible patients.
What this interaction means in plain words
Cetirizine and Gabapentin enacarbil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Cetirizine belongs to Respiratory; Gabapentin enacarbil belongs to Central Nervous System.
Why it happens
Additive CNS depressant effects (pharmacodynamic).
What to do
Monitor for sedation and dizziness, particularly at initiation or after dose increases. Use the lowest effective doses, with extra care in elderly patients or those with respiratory impairment.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Cetirizine
- Acrivastine + Cetirizine Moderate
- Amisulpride + Cetirizine Moderate
- Asenapine + Cetirizine Moderate
- Avapritinib + Cetirizine Moderate
- Benzhydrocodone / acetaminophen + Cetirizine Moderate
- Brexpiprazole + Cetirizine Moderate
Other interactions of Gabapentin enacarbil
Frequently asked questions
Can I take Cetirizine with Gabapentin enacarbil?
MediHelp rates the interaction as minor. Cetirizine and Gabapentin enacarbil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Gabapentin enacarbil is converted to gabapentin, which causes somnolence and dizziness and can contribute to respiratory depression when combined with other CNS depressants. Cetirizine is minimally sedating but may add to drowsiness in susceptible patients.
How serious is the interaction between Cetirizine and Gabapentin enacarbil?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for sedation and dizziness, particularly at initiation or after dose increases. Use the lowest effective doses, with extra care in elderly patients or those with respiratory impairment.
What other medicines interact with Cetirizine?
MediHelp also lists interactions of Cetirizine with, for example, Acrivastine, Amisulpride, Asenapine. The full list is on the Cetirizine page.
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