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Are Halls Menthol Cough Drops Gluten Free? Halls are not gluten-free. … HALLS offers a wide variety of cough drops in different flavors and styles, including regular, sugar-free, “natural” and non-mentholated. Are Halls cough drops GF? Halls are not gluten-free. … HALLS offers a wide variety of cough drops in different flavors and styles, including