Histal DM is an expectorant that helps to loosen mucus in your throat and lungs. This combination of two drugs helps to loosen mucus and thin out bronchial secretions.
The combination of brompheniramine, dextromethorphan, and phenylephrine is used?to treat runny or stuffy nose, sneezing, itching, watery eyes, cough, and sinus congestion caused by allergies, the common cold, or the flu. TL-Hist DM will not treat a cough that is caused by smoking, asthma, or emphysema.
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