Dextromethorphan is a medication in a classification of drugs known as antitussives. It works by decreasing activity in the part of the brain that causes coughing, says Medline Plus, a publication of the National Institutes of Health. Dextromethorphan is available over the counter in cough suppressants and cold formulations. It is available in liquid form, in dissolving tablets and in strips. It is not recommended for use in a child under the age of 4. There are some side effects associated with dextromethorphan that patients should be aware of.
Dizziness and Drowsiness
Dextromethorphan may cause dizziness and drowsiness. Patients should use caution while driving or completing tasks which may be dangerous until they know how this medication will affect them. Taking dextromethorphan with food or milk may lessen these effects. If dizziness becomes severe and is accompanied by nervousness, confusion, or hallucinations a physician should be notified. These may be symptoms of a severe side effect of dextromethorphan.
Stomach Discomfort
Patients taking dextromethorphan may experience stomach discomfort. According to Medline Plus, symptoms can include stomach pain, nausea, and vomiting. Avoiding spicy, fried, or fatty foods may help lessen stomach upset. Eating smaller meals more frequently can help decrease symptoms of nausea and vomiting. Those who experience vomiting should increase their water intake to maintain good hydration. Severe vomiting should be brought to the attention of a physician. It can lead to the development of dehydration, which can be dangerous.
Nervousness and Restlessness
Dextromethorphan may cause nervousness and restlessness. Patients may have difficulty relaxing, focusing, and remaining calm. Some may experience trouble falling or staying asleep at night. If these symptoms become bothersome, consult a physician prior to taking another dose of dextromethorphan.
Severe Effects
In some cases, patients may experience severe side effects from dextromethorphan. Symptoms may include rash, hallucinations, confusion, and slow and shallow breathing, says Drugs.com. Users who experience these effects should seek emergency medical attention. To avoid facing a severe reaction, patients should follow package instructions carefully and not take dextromethorphan with other medications unless approved first by their physician.
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