Will Zyrtec cause drowsiness?

Allergy medication such as Benadryl and Chlor-Trimeton cause drowsiness, dry mouth, dizziness, blurred vision, nausea, and restlessness. Newer-generation antihistamines such as Clarinex and Zyrtec have been presented as having fewer antihistamine side effects. read more

Avoid drinking alcohol while taking Zyrtec (cetirizine capsules and tablets). Talk with your doctor before you use other drugs and natural products that slow your actions. If you are 65 or older, use Zyrtec (cetirizine capsules and tablets) with care. You could have more side effects. Use with care in children. Talk with the doctor. read more

Tell your doctor or pharmacist if you are taking other products that cause drowsiness such as opioid pain or cough relievers (such as codeine, hydrocodone), alcohol, marijuana, drugs for sleep or anxiety (such as alprazolam, lorazepam, zolpidem), muscle relaxants (such as carisoprodol, cyclobenzaprine), or other antihistamines (such as chlorpheniramine, diphenhydramine). read more

Zyrtec and Claritin have very few side effects and are generally recognized as safe for most people. However, some side effects may still occur. Zyrtec can cause sleepiness, but only in some people. Take it for the first time when you will be at home for a few hours in case it makes you sleepy. read more

Both Zyrtec and Claritin may make you drowsy or tired. For that reason, you shouldn’t take these medications if you also take muscle relaxers, sleeping pills, or other drugs that cause drowsiness. Taking them at the same time that you take sedating drugs can make you extremely sleepy. read more