What are Xyzal (levocetirizine) side effects?

Possible side effects of Xyzal are listed below. Call your doctor if these side effects are severe or do not go away.

• Drowsiness
• Fatigue
• Weakness
• Dry mouth
• Sore or itchy throat
• Cough
• Fever
• Runny nose, itchy nose, nasal congestion
• Nosebleed

Xyzal can cause certain serious adverse effects. Tell your doctor right away if you experience:

• Rash, hives, itching
• Swelling of the hands, arms, lower legs, ankles, feet

The above list may not include all the potential side effects of Xyzal. Talk to your doctor if you have severe side effects or less severe symptoms that do not improve over time. You can also report an unusual or allergic reaction to the Food and Drug Administration at 1-800-FDA-1088.

Xyzal overdose: Contact a healthcare professional and get emergency medical attention in case of a known or suspected overdose. You can also call the Poison Control Center at 1-800-222-1222. If the person can’t be awakened, has had a seizure, or has trouble breathing, call 911 or take them to the nearest emergency room. Symptoms of a Xyzal overdose may include severe drowsiness, restlessness, and agitation.

 Source: FDA