Generic Claritin is an oral medicine that is primarily prescribed for eradicating allergic ailments, such as allergic rhinitis and chronic urticaria. It helps reduce allergic symptoms like runny and stuffy nose, constant sneezing, nasal congestion, hay fever, watery eyes, and skin rashes with intense burning, itching and redness. Generic Claritin is one of the best curative remedies for seasonal allergies. It acts by inhibiting a chemical, histamine, which is responsible for producing allergic reactions. The active ingredient present in this generic medicine is Loratadine, an FDA-approved antihistamine drug.