Nondrowsy Claritin RediTabs offer all-day allergy relief in a melt-in-your-mouth tablet that dissolves instantly without needing water. Claritin's active ingredient – loratadine – is indicated for the symptomatic relief of allergic rhinitis, hives and other skin allergies. Stop sneezing, runny nose, and itchy or burning eyes caused by airborne allergies with a Claritin RediTab.