Lutuss is a combination of two medicines: Chlorpheniramine Maleate and Levodropropizine, which relieves dry cough. Chlorpheniramine Maleate is an antiallergic that helps reduce cough associated with allergies by blocking the effects of a chemical messenger, histamine. Levodropropizine is a cough suppressant that relieves cough by reducing the activity of the cough center in the brain.