Fig. 2

Clinical course. The arrow indicates fluid restriction to 800 mL/day. The serum sodium level improved after the fluid restriction and remained stable after the start of tolvaptan administration. Baclofen 15 mg/day and clonazepam 1 mg/day were used as symptomatic treatments for the hiccups and tremor; the dose of clonazepam was subsequently increased to 2 mg/day