Dextromethorphan Hydrobromide, Pseudoephedrine, Guaifenesin, Menthol

Dextromethorphan Hydrobromide, Pseudoephedrine, Guaifenesin, and Menthol are the active ingredients in a combination medication commonly used for the relief of cough and cold symptoms.
Dextromethorphan Hydrobromide is a cough suppressant that works by affecting the signals in the brain that trigger cough reflex. It helps to reduce the urge to cough and can provide relief from a dry, irritating cough.
Pseudoephedrine is a decongestant that works by constricting blood vessels in the nasal passages, which helps to reduce swelling and congestion, and provides relief from stuffy nose and sinus pressure.
Guaifenesin is an expectorant that helps to thin and loosen mucus, making it easier to cough up from the lungs, thus helping to clear the airways and alleviate symptoms of chest congestion.
Menthol is a cooling agent that provides a soothing sensation to the throat and nose, which can help to alleviate discomfort and irritation caused by coughing and cold symptoms.
This combination medication is designed for temporary relief of cough, stuffy nose, and chest congestion associated with the common cold. It is important to follow the dosing instructions carefully and consult with a healthcare professional if symptoms persist or worsen.