If you have a cough that needs to be treated, you may benefit from dextromethorphan. There are two formulations of this drug available: dextromethorphan hydrobromide (HBr) and a long-acting form called dextromethorphan polistirex.
Dextromethorphan products come in both prescription and over-the-counter (OTC) medications. There are also several forms available, including tablets, capsules, a syrup, and a strip that dissolves on the tongue.
Dextromethorphan can help treat a minor cough caused by a cold, the flu, or certain other conditions. It is also used in combination with another medication to treat a neurological condition called pseudobulbar affect (PBA), which is associated with sudden, uncontrollable outbursts of laughing or crying.
Although most people tolerate this medication well, side effects are possible and may include dizziness, drowsiness, and indigestion. When reactions occur, they tend to be minor and are typically easy to treat.
(For more details on dextromethorphan hydrobromide, click Dextromethorphan. This eMedTV Web article takes a closer look at dextromethorphan, including how this drug works, dosing guidelines, and what your healthcare provider needs to know before you take this medicine.)