Drug interactions
Cetirizine + Glecaprevir / pibrentasvir
Severity: Minor
Cetirizine and Glecaprevir / pibrentasvir: 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
Glecaprevir and pibrentasvir inhibit P-glycoprotein and may raise cetirizine concentrations. Given cetirizine's wide safety margin, the expected effect is modest, such as more drowsiness.
What this interaction means in plain words
Cetirizine and Glecaprevir / pibrentasvir have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
P-glycoprotein inhibition reduces efflux of cetirizine.
What to do
Monitor for increased sedation; no routine dose change is needed.
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
Frequently asked questions
Can I take Cetirizine with Glecaprevir / pibrentasvir?
MediHelp rates the interaction as minor. Cetirizine and Glecaprevir / pibrentasvir have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Glecaprevir and pibrentasvir inhibit P-glycoprotein and may raise cetirizine concentrations. Given cetirizine's wide safety margin, the expected effect is modest, such as more drowsiness.
How serious is the interaction between Cetirizine and Glecaprevir / pibrentasvir?
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 increased sedation; no routine dose change is needed.
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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