Drug interactions
Asenapine transdermal + Cetirizine
Severity: Minor
Asenapine transdermal and Cetirizine: 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
Asenapine is a sedating antipsychotic and cetirizine can cause drowsiness in some patients. Together they may produce additive sedation and impaired concentration.
What this interaction means in plain words
Asenapine transdermal and Cetirizine 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
Additive CNS depression through H1 receptor antagonism.
What to do
Counsel patients about drowsiness and caution with driving; consider bedtime dosing of cetirizine if sedation occurs.
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 Asenapine transdermal with Cetirizine?
MediHelp rates the interaction as minor. Asenapine transdermal and Cetirizine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Asenapine is a sedating antipsychotic and cetirizine can cause drowsiness in some patients. Together they may produce additive sedation and impaired concentration.
How serious is the interaction between Asenapine transdermal and Cetirizine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients about drowsiness and caution with driving; consider bedtime dosing of cetirizine if sedation occurs.
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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