Prescription onlyLower-cost generic availableClass: Respiratory



Prescription onlyLower-cost generic availableClass: Respiratory
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Treats allergy symptoms.

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Our bottom line

Xyzal (Levocetirizine) is good for treating allergy symptoms, but it can cause drowsiness.

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  • Xyzal (Levocetirizine) is taken once a day to help with allergy symptoms.
  • Available as a generic in both liquid and tablets.
  • Can be taken with or without food.
  • Children can take lower doses of Xyzal (Levocetirizine).
People say this drug is:
16 reviews


  • Can cause drowsiness.
  • Don't take Xyzal (Levocetirizine) if you have poor kidney function.
  • Xyzal (Levocetirizine) is similar to Zyrtec, another allergy medication, so if you can't take Zyrtec, you won't be able to take Xyzal (Levocetirizine).
How it works

Xyzal (Levocetirizine) is an antihistamine. It blocks histamine, a chemical that causes congestion, itching, and other allergic reactions.

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Side effect rates for Xyzal (levocetirizine)

1982 From clinical trials of Xyzal / Allergies (5 mg)
  • Drowsiness
  • Common cold
  • Fatigue
  • Fever
  • Cough
  • Drowsiness
  • Dry mouth
  • Nosebleed

Risks and Warnings for Xyzal (levocetirizine)

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    • Higher risk if:
    • Taking with alcohol
    • Taking other medicines that make you less alert

    Xyzal (Levocetirizine) lowers your ability to focus, think, and react. Be careful and avoid activities that require you to be alert, such as driving a car or operating machinery, until you know how this medication affects you.

Common concerns from people taking Xyzal (levocetirizine)

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  • Can be taken with or without food.
Kidneys and liver
  • Xyzal (Levocetirizine) is processed by the kidney. If you have kidney problems, you may need a different dose to prevent increased risk for side effects. Don't use Xyzal (Levocetirizine) if you have end-stage renal disease or are on hemodialysis. Children ages 6 months to 11 years with kidney problems shouldn't use Xyzal (Levocetirizine).
  • Can cause drowsiness.
  • Xyzal (Levocetirizine) can cause dizziness or drowsiness. Don't drink alcohol or take other allergy medications while on this.
  • Take at night to avoid potential sleepiness. Might affect my sleeping habits.
  • Doesn't really cause drowsiness, I had more drowsiness with Zyrtec than with this one! It actually helps my anaphylaxis even to the point that taking a pill at the beginning of an episode can cause the attack to stop progressing and diminish quickly after the medicine starts to kick in.