Can you die from 1800 mg of Allegra?

While an overdose of Allegra (fexofenadine) at 1800 mg could lead to serious side effects, it is not typically considered lethal. The maximum recommended dose is 180 mg per day, and exceeding this can result in symptoms such as dizziness, drowsiness, and heart palpitations. However, individual reactions can vary, so it's important to seek medical attention if an overdose is suspected. Always consult a healthcare professional for guidance on medication use.