Xyzal (Levocetirizine) Side Effects, Important Info, Before Taking, How to Take

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Xyzal Side Effects. Severity: Major. If any of the following side effects occur while taking levocetirizine, check with your doctor immediately:

Bloody nose
fever
anxiety
attack, assault, or force
blurred or loss of vision
cough
dark urine
decrease in the frequency of urination
decrease in urine volume
difficult or labored breathing

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