Allegra M contains the active ingredients fexofenadine and montelukast, while Kerala Ayurveda Histantin is an herbal allergy formulation. Although there are no well-documented interactions between these specific products, combining allopathic and herbal treatments should be done with caution. Rather than mixing therapies on your own, it is safest to have her doctor review her symptoms. Persistent hives often indicate that her dose of fexofenadine needs adjustment, or a different primary strategy is required. Please consult her healthcare provider to find the safest, most effective way to help her get relief soon.
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Is it safe for my sister to take Allegra M and Kerala Ayurveda Histantin tablets together if she still gets hives?