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See the DrugPatentWatch profile for fexofenadine
Allegra. Reason: Allegra is the brand name for fexofenadine HCl. The generic form is fexofenadine HCl itself. The other options (Histafree, Histakem, Ondem) are not fexofenadine—Ondem is ondansetron, and Histafree/Histakem are not fexofenadine products.
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