What If I Take an Overdose of Dextromethorphan Polistirex?An overdose with this medication can be dangerous, especially if combined with alcohol or other medications. If you happen to take too much dextromethorphan polistirex, seek immediate medical attention.
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What Should I Do If I Miss a Dose?If you forget to take your dose, take it as soon as you remember. If it is almost time for your next dose, simply skip the one you missed and continue with your regular schedule. Do not take a double dose of dextromethorphan polistirex, and do not the medication more frequently than every 12 hours.
How Does Dextromethorphan Polistirex Work?At normal dosages, dextromethorphan polistirex works mostly in the brain. In particular, it works in the "cough center" located in the brainstem, increasing the "cough threshold." This action suppresses coughing.
Dextromethorphan polistirex is different from other formulations of dextromethorphan, in that it comes in a special long-acting liquid. Some of the medicine is released immediately after a dose, providing fast relief, but some of the dextromethorphan is contained in specially coated particles that dissolve slowly in the intestines, providing long-lasting relief.
Dextromethorphan is chemically related to morphine and other opioids, but it does not share the pain-relieving and addictive effects of other opioids. However, despite the lack of addictive effects, the medication may be abused. At higher dosages, dextromethorphan polistirex works as a hallucinogen, much like phencyclidine (PCP or "angel dust").