Neuropathic pain Initially 150 mg daily. May be increased to 300 mg daily after 3-7 days interval. Max daily dose: 600 mg after an additional 7-day interval.
Epilepsy Initially 150 mg daily. May be increased to 300 mg daily after 1 wk. Max daily dose: 600 mg may be achieved after an additional wk.
GAD Initially 150 mg daily. May be increased to 300 mg daily after 1 wk, then further increased to 450 mg daily following an additional wk. Max daily dose: 600 mg may be achieved after an additional wk.
Fibromyalgia Initially 75 mg bid (150 mg daily) & may be increased to 150 mg bid (300 mg daily) w/in 1 wk based on efficacy & tolerability.
Patients who do not experience sufficient benefit w/ 300 mg daily May be further increased to 225 mg bid (450 mg daily). Max daily dose:
Patients based on individual response & tolerability If needed, 600 mg after an additional wk.
Renal impairment CrCl ≥60 mL/min Initial dose: 150 mg daily, max dose: 600 mg daily;
CrCl ≥30-<60 mL/min Initial dose: 75 mg daily, max dose: 300 mg daily. All doses are given in 2 or 3 divided doses;
CrCl ≥15-<30 mL/min Initial dose: 25-50 mg daily, max dose: 150 mg daily. All doses are given in single daily dose or 2 divided doses;
CrCl <15 mL/min Initial dose: 25 mg daily, max dose: 75 mg daily. All doses are given in single daily dose.
Supplementary dosage following hemodialysis Initial dose: 25 mg, max dose: 100 mg. All doses are given in single additional dose. Supplementary dose should be given immediately following every 4-hr hemodialysis treatment.