Is it bad to take fexofenadine 180mg twice a day?

Taking fexofenadine 180 mg twice a day is generally not recommended, as the typical dosage for adults is one tablet per day. Exceeding the recommended dosage can increase the risk of side effects, such as drowsiness or headache, even though fexofenadine is usually non-sedating. Always consult with a healthcare professional before making any changes to your medication regimen.