Generic Name: Levocetirizine

  • What is this medication and its most common uses?

    Xyzal is a medicine used to relieve symptoms of seasonal and year-round allergies, such as watery and itchy eyes, runny nose, and sneezing. It is also used to treat the symptoms of hives. Xyzal is available as tablets and liquid.

  • What should I know when beginning and continuing on this medication?

    How does this medication work?

    Xyzal works by blocking the release of a chemical in your body called histamine that causes allergic symptoms.

    What are the beneficial effects of this medication and when should I begin to have results?

    What: By blocking histamine release, Xyzal may help improve your symptoms.

    When: Xyzal has been shown to start improving symptoms within one day of taking the medication.

    How do I know it is working?

    You may notice an improvement in your itching symptoms after you start using Xyzal. This is a good indicator that the medicine is working. Your healthcare provider may ask you questions from time to time to check how well your symptoms are controlled.

  • What are the possible side effects of this medication?

    The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.

    Adults and Children ≥12 years

    More common side effects may include: Dry mouth, fatigue, common cold, sore throat, sleepiness.

    Children 6-12 years

    Cough, fever, nosebleed, sleepiness.

    Children 1-5 years

    Diarrhea, ear infection, fever, vomiting.

    Children 6-11 months

    Constipation, diarrhea.

    Less common side effects of Xyzal may include:

    Xyzal may increase the risk of urinary retention (inability to urinate normally).

  • Who should not take this medication?

    Do not take Xyzal if you are allergic to it or any of its ingredients.

    Do not take Xyzal if you have kidney failure or are on dialysis.

    Do not give Xyzal to your child if he/she has kidney problems.

  • What should I tell my healthcare provider before I take the first dose of this medication?

    Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Xyzal. Also, talk to your healthcare provider about your complete medical history, especially if you have kidney problems, urinary retention, or are pregnant, plan to become pregnant, or are breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.

    Adults and children ≥12 years: The recommended dose is one 5-milligram (mg) tablet or 10 milliliters (ml) (2 teaspoons) of solution once a day in the evening.

    Children 6-11 years: The recommended dose is 2.5 mg (1/2 tablet) or 5 ml (1 teaspoon) of solution once a day in the evening.

    Children 6 months-5 years: The recommended dose is 1.25 mg (1/2 teaspoon) [2.5 ml] of solution once a day in the evening.

    If you or your child has kidney impairment, your healthcare provider will adjust the dose appropriately.

  • How should I take this medication?

    Take Xyzal exactly as prescribed by your healthcare provider. Do not take extra doses or take more often without asking your healthcare provider.

    Take Xyzal with or without food.

  • What should I avoid while taking this medication?

    Do not drink alcohol or take medicines that make you sleepy while you are taking Xyzal.

    Do not drive, operate machinery, or engage in dangerous activities until you know how Xyzal affects you.

  • What are the possible food and drug interactions associated with this medication?

    If Xyzal is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining Xyzal with the following: antipyrine, azithromycin, cimetidine, erythromycin, ketoconazole, pseudoephedrine, ritonavir, or theophylline.

  • May I receive this medication if I am pregnant or breastfeeding?

    The effects of Xyzal during pregnancy are unknown. Xyzal may be found in your breast milk if you take it while breastfeeding. Do not breastfeed while you are taking Xyzal. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of this medication?

    If you miss a dose of Xyzal, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store this medication?

    Store at room temperature.