Adult 150-600 mg daily in 2-3 divided doses.
Neuropathic pain Starting dose: 150 mg daily. May be increased to 300 mg daily after an interval of 3-7 days & to max of 600 mg daily if needed after an additional 7-day interval.
Epilepsy & GAD Starting dose: 150 mg daily. May be increased to 300 mg daily after 1 wk. Max dose of 600 mg daily may be achieved after an additional wk.
Fibromyalgia Starting dose: 75 mg bd. May be increased to 150 mg bd w/in 1 wk based on efficacy & tolerability. May be increased further to 225 mg bd in patients who do not experience sufficient benefit w/ 300 mg daily. Max daily dose: 450 mg.
Renal impairment CrCl ≥60 mL/min Starting dose: 150 mg/day. Max daily dose: 600 mg,
≥30-<60 mL/min Starting dose: 75 mg/day. Max daily dose: 300 mg,
≥15-<30 mL/min Starting dose: 25-50 mg/day. Max daily dose: 150 mg,
<15 mL/min Starting dose: 25 mg/day. Max daily dose: 75 mg.
Supplementary dosage following hemodialysis Starting dose: 25 mg/day as single dose. Max daily dose: 100 mg.