Can You Take Cetirizine with Alcohol?
Last reviewed: · Source: US FDA drug label database
Use caution — cetirizine and alcohol both cause drowsiness and together the sedative effect can be significantly enhanced.
Is it safe to take Cetirizine with Alcohol?
Cetirizine is a second-generation antihistamine used for hay fever, allergies, and urticaria. Although it is designed to be less sedating than older antihistamines, cetirizine can still cause drowsiness in some people. Alcohol is a CNS depressant that increases this drowsiness. The combination can impair driving ability, reaction times, and cognitive function.
How do Cetirizine and Alcohol interact?
Cetirizine is an H1 receptor antagonist. At high doses or in susceptible individuals, it crosses the blood-brain barrier enough to cause sedation. Alcohol enhances GABA-A activity, producing CNS depression. Combined sedation is additive. Cetirizine is renally excreted and not significantly affected pharmacokinetically by alcohol.
Data sourced from the US Food and Drug Administration (FDA) drug label database: OpenFDA cetirizine drug label — alcohol warning.
Who should be careful?
Drivers or machine operators — the combination can impair reaction times. The elderly. Those on other sedating medications.
What if I've already taken Cetirizine and Alcohol?
If drowsy, do not drive. Rest until fully alert.
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Frequently Asked Questions
Can I drink alcohol with cetirizine?
Light drinking may be manageable for some, but the combination can increase drowsiness and impair driving. Avoid alcohol if you need to drive or operate machinery.
Is cetirizine safe to drink with alcohol?
There is no dangerous direct interaction, but the combined sedation can be significant in some individuals. Cetirizine's drowsiness-causing potential is lower than older antihistamines but not zero.
Can I take antihistamines and drink?
Second-generation antihistamines like cetirizine or loratadine are less sedating than first-generation ones (like chlorphenamine), but all can be enhanced by alcohol. Avoid combining if you need to drive.
How long after cetirizine can I drink?
Cetirizine has a half-life of 8-10 hours. Wait at least 12 hours after a dose before driving; for drinking, the risk is mainly about combined drowsiness rather than toxicity.