Mizollen, known generically as mizolastine, is an antihistamine medication primarily used to manage symptoms associated with allergic reactions, such as hay fever (allergic rhinitis), conjunctivitis, and urticaria (hives). It operates by blocking the action of histamine, a substance in the body that is released during allergic reactions, thereby reducing symptoms like sneezing, itching, watery eyes, and runny nose. Mizollen is distinguished by its once-daily oral administration, offering convenience for users. It is classified as a second-generation antihistamine, which means it is less likely to cause drowsiness compared to first-generation antihistamines, making it a preferable option for individuals who need to maintain alertness during the day. However, as with any medication, it is important to use Mizollen under the guidance of a healthcare professional to ensure it is appropriate for your specific condition and to avoid potential interactions with other medications.