How does Fexofenadine compare to Levocetirizine in terms of efficacy and tolerability for managing seasonal or perennial allergies?
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Fexofenadine and Levocetirizine are both effective for treating allergies, but Levocetirizine may be slightly more effective for nasal symptoms and has a rapid onset of action. Both have minimal sedative effects.
Levocetirizine is often preferred for severe allergies due to its stronger effect at lower doses and good tolerability, whereas Fexofenadine is favored for its minimal sedation, making it suitable for daytime use.