Memantine Hydrochloride for Treatment of Cognitive Dysfunction Due to Traumatic Brain Injury

Memantine was added to each patient's current medication, with the initial dosage of 5 mg/day (once daily). The dosage was then increased to 10 mg/day after a week and maintained till the end of the study. In the case of intolerance to this increase, the dosage was flexibly adjusted according to the condition of the patient.