CV: THROMBOEMBOLISM.
EENT: development/worsening of cataracts.
GI: HEPATOTOXICITY.
Persistent or Chronic Immune Thrombocytopenia
- PO (Adults and Children 6 yr): 50 mg once daily, may be ↑ to achieve a platelet count of 50 × 109/L (not to exceed 75 mg/day); Patients of East-/Southeast-Asian ancestry 25 mg once daily initially, may be ↑ to achieve a platelet count of 50 × 109/L (not to exceed 75 mg/day).
- PO (Children 15 yr): 25 mg once daily, may be ↑ to achieve a platelet count of 50 × 109/L (not to exceed 75 mg/day).
Hepatic Impairment
- (Adults): Mild, moderate, or severe hepatic impairment (Child Pugh Class A, B, C): 25 mg once daily initially, may be ↑ to achieve a platelet count of 50 × 109/L (not to exceed 75 mg/day);Patients of East-/Southeast-Asian ancestry with mild, moderate, or severe hepatic impairment (Child Pugh Class A, B, C) 12.5 mg once daily initially, may be ↑ to achieve a platelet count of 50 × 109/L (not to exceed 75 mg/day).
Chronic Hepatitis C-Associated Thrombocytopenia
- PO (Adults): 25 mg once daily; may be ↑ by 25 mg every 2 wk to achieve the target platelet count required to initiate antiviral therapy; during antiviral therapy, adjust dose to avoid dose ↓ of peginterferon (not to exceed 100 mg/day).
First-Line Treatment of Severe Aplastic Anemia
- PO (Adults and Children 12 yr): 150 mg once daily for 6 mo; Patients of East-/Southeast-Asian ancestry 75 mg once daily for 6 mo.
- PO (Children 611 yr): 75 mg once daily for 6 mo; Patients of East-/Southeast-Asian ancestry 37.5 mg once daily for 6 mo.
- PO (Children 25 yr): 2.5 mg/kg once daily for 6 mo; Patients of East-/Southeast-Asian ancestry 1.25 mg/kg once daily for 6 mo.
Hepatic Impairment
- PO (Adults and Children 12 yr): Mild, moderate, or severe hepatic impairment (Child Pugh Class A, B, C): 75 mg once daily for 6 mo.
Hepatic Impairment
- PO (Adults and Children 611 yr): Mild, moderate, or severe hepatic impairment (Child Pugh Class A, B, C): 37.5 mg once daily for 6 mo.
Hepatic Impairment
- PO (Adults and Children 25 yr): Mild, moderate, or severe hepatic impairment (Child Pugh Class A, B, C): 1.25 mg/kg once daily for 6 mo.
Refractory Severe Aplastic Anemia
- PO (Adults): 50 mg once daily; may be ↑ by 50 mg every 2 wk to achieve a platelet count of 50 × 109/L (not to exceed 150 mg/day);Patients of East-/Southeast-Asian ancestry 25 mg once daily; may be ↑ by 50 mg every 2 wk to achieve a platelet count of 50 × 109/L (not to exceed 150 mg/day).
Hepatic Impairment
- (Adults): Mild, moderate, or severe hepatic impairment (Child Pugh Class A, B, C): 25 mg once daily; may be ↑ by 50 mg every 2 wk to achieve a platelet count of 50 × 109/L (not to exceed 150 mg/day).
Therapeutic Classification: antithrombocytopenics
Pharmacologic Classification:
Absorption: 52% absorbed following oral administration.
Distribution: Unknown.
Protein Binding: >99%.
Metabolism/Excretion: Extensively metabolized; 59% eliminated in feces, 20% as unchanged drug; 31% excreted in urine as metabolites.
Half-life: 2135 hr.
(effect on platelet count)