Generally, the ideal time to take Allegra 120mg is in the morning, as this allows the medication to offer coverage during the day—when allergy triggers such as pollen, dust, or outdoor exposure are most likely to affect you. Taking it in the morning also reduces the risk of overlap with other nighttime medications, especially those that may cause drowsiness. Because Allegra 120mg is non-sedating, it won’t interfere with your ability to focus or stay alert during the day, making it convenient for students, professionals, and others with busy daytime schedules.