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Demulcents, Overview. Demulcents:Bland compounds of high molecular weight that forms aqueous solutions of high viscosity which is miscible with the mucus (i.e., It forms viscid mucilaginous solutions with water) Demulcent forms a soothing film over a mucous membrane, relieving minor pain and inflammation of the membrane Demulcents as pectin, glycerine, honey and syrup are common ingredients in cough mixtures.
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