Side Effects of Xyzal

Xyzal (Levocetirizine) is a medication prescribed to treat the symptoms of seasonal allergies, hay fever, and chronic hives, including symptoms posed by other allergens, such as dust mites, animal dander and mold.  These allergic symptoms include itchy ears, nose and throat; runny nose; itchy, red and watering eyes.   Xyzal provides relief by blocking the effects of histamine that causes the symptoms.

Side effects associated with the use of Xyzal appear to be rather minimal and most patients find the relief from their allergic symptoms outweighs any side effects the drug may cause.  As with any drug, you should inform your doctor of any other medications you may be taking including vitamins, herbal products, or dietary supplements as these may inhibit the effectiveness of the drug.  There are some drugs which should not be taken with Xyzal as drug interactions may occur.  These include antidepressants, sleeping pills, tranquilizers, and medications for seizures, mental illness, or anxiety.  Ritonavir and Theophylline should not be taken with Xyzal.

Mild side effects to Xyzal may include, sleepiness, low energy, a feeling of weakness, dry mouth or throat, cough, nosebleed and fever.  The following rare side effects have been associated with the drug Xyzal:  feelings of restlessness, weight gain, nausea, pain in the muscles and throbbing or pulsing heart.  Rare symptoms that should be monitored by a physician include:  aggressive behavior; vision problems; yellowing of the skin or eyes (hepatitis); and fainting or seizures.  As with any medication, there is a small risk of allergic reaction.  Unusually large hives, trouble breathing, and swelling of the tongue, throat or face could be signs of an allergic reaction and the patient should discontinue the medication and seek medical help immediately.

Most patients find that Xyzal is tolerated much more readily than the truly troubling symptoms of seasonal allergies.