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. 2007 Dec;3(6):887–900.

Table 6.

Recommended dosing regimens for bosentan in adults and children

Starting dose
(1st 4-weeks)
Maintenance dose
(Week 5 onwards)
Adults (>12 years of age)
 Bodyweight > 40 kg 62.5 mg twice daily 125 mg twice daily
 Bodyweight < 40 kg 62.5 mg twice daily 62.5 mg twice daily
Children (<12 years of age)
 Bodyweight <10 kg 15.6 mg daily 15.6 mg twice daily
 Bodyweight 10–20 kg 31.25 mg daily 31.25 mg twice daily
 Bodyweight 20–40 kg 31.25 mg twice daily 62.5 mg twice daily
 Bodyweight >40 kg 62.5 mg twice daily 125 mg twice daily