It's time to experience a night and day difference in allergy relief. Enter Xyzal Allergy Tablets, 24-Hour Allergy Relief, Original Prescription Strength, 10-Count. Xyzal is a prescription strength allergy medicine that relieves symptoms of indoor and outdoor allergies, including sneezing; itchy, watery eyes; runny nose; itchy nose or throat. Find rapid relief with Xyzal, which starts working in one hour –– and it keeps working for 24 hours. That's right –– Xyzal is as effective at hour 24 as it is at hour 1. Xyzal is taken at night before going to bed so you wake feeling refreshed and symptom-free in the morning when pollen is at its worst. Enjoy the life you've dreamed of –– free from the misery of allergy symptoms. Be wise all, take Xyzal. HSA/FSA EligibleRestrictions apply; contact your insurance provider about plan allowances and requirements.