Claritin is an over-the-counter medication used to treat symptoms of allergies, such as sneezing, runny nose, and itchy eyes. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. Claritin is available in various forms, including tablets, liquid gels, and chewable tablets. It is generally well-tolerated and has a low risk of side effects. However, it may not be suitable for everyone, so it is important to consult with a healthcare provider before starting treatment with Claritin.