Drowsiness oxcarbazepine

Adverse Effects Adverse effects due to oxcarbazepine include drowsiness, dizziness, gastrointestinal upset, and hyponatremia, the latter two of which may be more likely than with carbamazepine. It is less likely than carbamazepine to cause hematologic abnormalities.34... 

Gastric upset from CBZ may be diminished by taking the drug after meals. Common toxicities include blurred vision, dizziness, drowsiness, and ataxia. Tremor, depression, hyponatremia, and cardiac disturbances are seen at high serum concentrations. Idiosyncratic rashes are common rarer severe idiosyncratic effects include aplastic anemia, agranulocytosis, thrombocytopenia, and jaundice. Therefore, patients receiving CBZ should have periodic blood count determinations and liver function tests. Both CBZ and oxcarbazepine can reduce plasma 25-hydroxy vitamin D levels (45). CBZ increases levels of phenytoin and decreases levels of... 

A 10-year-old boy with refractory epilepsy developed symptoms and signs of oxcarbazepine toxicity (vomiting, drowsiness, hyperkinesia, ataxia, and nystagmus) after two doses of clarithromycin 250 mg. The symptoms resolved on withdrawal of the clarithromycin. 

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