Table 5. Dosage Adjustment and Monitoring in Patients Developing Aminotransferase Abnormalities5
ALT/AST levels
Dosage recommendations

> 3 and < 5 x ULN

  • Confirm and reduce daily dose or interrupt treatment.
  • Monitor ALT/AST every 2 weeks.
  • If levels return to pretreatment levels, continue or reintroduce treatment at starting dose.
> 5 and < 8 x ULN
  • If confirmed, stop treatment.
  • Monitor ALT/AST every 2 weeks.
  • If levels return to pretreatment levels, reintroduce treatment at starting dose.
> 8 x ULN
  • Stop treatment.
  • Reintroduction should not be considered.

ULN: Upper Limit of Normal

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