Consciousness due to head injury or brain surgery 100-500 mg IM/IV 1-2 times daily.
Consciousness disturbances in acute cerebral infarction stage 1,000 mg IV once daily for 2 consecutive wk.
Hemiplegia after cerebral apoplexy 1,000 mg IV once daily for 4 consecutive wk, continue for 4 wk if patient shows clinical improvement.