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does zyrtec make you sleepy

The Lists Norml Team

5 min read · Jun 01, 2026

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Jun 17, 2025 · Since the effects of Zyrtec last 24 hours, drowsiness can hit at any time. Avoid alcohol and be careful about driving if the med hits you with the sleepies, per the Zyrtec site.

Apr 30, 2025 · Unlike older antihistamines that knock you out cold, Zyrtec belongs to the second-generation family that typically causes less drowsiness. What’s the deal with antihistamines making …

Mar 9, 2026 · Feeling drowsy is a common Zyrtec side effect. It’s typically not as severe as the drowsiness caused by first-generation antihistamines, such as Benadryl (diphenhydramine). But it …

Mar 26, 2026 · Cetirizine (Zyrtec) is more likely to make you sleepy than other second-generation antihistamines, but far less likely than older options like diphenhydramine (Benadryl). In clinical trials, …

Aug 11, 2025 · Although Zyrtec is unlikely to make you drowsy, some people are susceptible to this effect, especially if they are taking dosages at the upper end of the recommended dosage range.

May 1, 2026 · Common side effects of Zyrtec include sleepiness, tiredness, and dry mouth. Zyrtec can interact with other medications that cause drowsiness, such as opioids and sleeping pills. Rarely, …

Dec 15, 2023 · Drowsiness is a common side effect of Zyrtec. In placebo-controlled clinical trials, 11% to 14% of patients taking Zyrtec reported feeling sleepy after taking the medication. Of course, Zyrtec is …

Zyrtec has a reputation for being a non-drowsy allergy medication compared with older antihistamines but it can still cause mild next-day sleepiness in certain individuals due to its pharmacological action …

Dec 5, 2024 · Common side effects may include drowsiness and headache. Do not drive or do other activities that require alertness or coordination until you know how cetirizine affects you.

Jan 15, 2018 · Yes, Zyrtec (cetirizine) can cause you to feel sleepy and can create a general feeling of drowsiness and sedation. Below, we discuss Zyrtec in detail as well as the incidence of sedative side …