How does Fexofenadine impact the central nervous system compared to first-generation antihistamines, and why does it cause less drowsiness or cognitive impairment?
Sunil JoshiExplorer
How does Fexofenadine affect the central nervous system compared to first-generation antihistamines?
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Fexofenadine is less lipophilic and does not cross the blood-brain barrier as readily as first-generation antihistamines, reducing its effects on the CNS and thus causing less drowsiness.