Zefcolin is an efficient cough remedy with active ingredient having powerful antitussive action for symptomatic relief of dry cough. Dextromethorphan Hydrobromide is a cough suppressant which has a central action on the cough center in the medulla effective for the relief of non-productive dry cough. Phenylephrine hydrochloride is the most commonly used salt for the symptomatic relief of nasal congestion. It is intended for the relief of cough and cold symptoms. Cetirizine hydrochloride is anti-histamine reported to be long acting and with some mast cell stabilizing activity. It is used for the symptomatic relief of hypersensitivity reactions including rhinitis. Menthol exerts a cooling and local analgesic effect on the irritated and inflamed respiratory mucosa, thereby reduces mucosal irritation and generation of tussal impulses. Zefcolin is indicated for symptomatic relief of dry unproductive cough due to: Post Nasal Drip, Allergic & Vasomotor Rhinitis, Allergic Pharyngitis, Laryngitis & Sinusitis, Allergic cough following URTI and Surgery.