Second-generation H1 antihistamine
Who should not take Cetirizine
A contraindication is a condition under which Cetirizine (Cetirizine) should not be taken because the risk outweighs the benefit. Cetirizine has both absolute contraindications (do not use) and relative cautions (use only after careful review). This page summarises both at the 5mg, 10mg dosing range.
Absolute contraindications
According to the prescribing information for Cetirizine, absolute contraindications typically include severe allergic reactions to the active ingredient or excipients, severe hepatic or renal impairment, certain cardiovascular conditions, and concurrent use of specific interacting medications. The exact list depends on the molecule and is detailed in the official label.
Relative cautions
Relative cautions are situations where Cetirizine can be used but with extra monitoring, dose reduction or alternative considered. These often include mild-to-moderate organ impairment, age extremes, multiple comorbidities, and complex medication regimens. Cetirizine selectively blocks peripheral H1 histamine receptors, antagonising the effects of histamine released by mast cells during allergic responses.
Frequently asked questions
Can someone with heart disease take Cetirizine? ▾
Some forms of heart disease are absolute contraindications for Cetirizine, particularly with nitrate use or recent cardiovascular events. Stable, well-controlled cardiovascular disease may allow Cetirizine use under specialist supervision. The prescribing information for Cetirizine should be reviewed.
Is Cetirizine safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Cetirizine at adjusted lower 5mg, 10mg doses. Severe kidney failure is often a contraindication or requires substantial dose reduction. The prescriber decides based on lab results and concurrent medications.
Products containing Cetirizine
More on Cetirizine
- With alcoholCetirizine and alcohol — is it safe to drink?
- With foodShould Cetirizine be taken with food?
- Side effectsCetirizine side effects: common, rare and warning signs
- Dosage guideCetirizine dosage guide: how much to take and when
- OnsetHow fast does Cetirizine start working?
- DurationHow long does Cetirizine last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.