Costus D Syrup (100ml) is a combination antitussive and decongestant oral syrup used for the symptomatic relief of dry cough associated with common cold, throat irritation, and allergic conditions. It helps reduce cough frequency, nasal congestion, and associated discomfort, improving overall breathing comfort.

This formulation contains Dextromethorphan Hydrobromide, Chlorpheniramine Maleate, and Phenylephrine, which work together to suppress the cough reflex, reduce allergic response, and relieve nasal blockage.

Dextromethorphan acts on the cough center in the brain to control dry cough, Chlorpheniramine helps reduce allergy symptoms like runny nose and sneezing, while Phenylephrine provides relief from nasal congestion by narrowing dilated blood vessels in the nasal passages.

Costus D Syrup is generally recommended for short-term use under medical supervision for dry cough and cold-related symptoms.