Cetirizine and Pseudoephedrine interaction
Cetirizine and Pseudoephedrine: the Cetirizine prescribing label report no clinically significant interaction between these two.
No clinically significant interaction reported. The label studied or considered this pair and found nothing meaningful.
What the FDA labels say
From the Cetirizine (QUZYTTIR) label · effective 2026-03-04
No clinically significant drug interactions with oral cetirizine hydrochloride, the active ingredient in QUZYTTIR, have been found with theophylline at a low dose, azithromycin, pseudoephedrine, ketoconazole, or erythromycin.
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.