Loratadine, 10mg/Antihistamine. 24-Hour Relief of: Sneezing; Runny nose; Itchy, watery eyes; Itching of nose & throat. Alavert Allergy provides 24 hours of allergy symptom relief without causing drowsiness when taken as directed. It contains prescription strength Loratadine. Just one tablet a day relieves runny nose, sneezing and itchy, watery eyes. It is safe and effective for adults and children 6 years and over. The tablet is small and easy to swallow.