Renal Mild–moderate: no starting-dose adjustment; not studied in severe (CrCl <30 mL/min) or ESRD
Hepatic Child-Pugh A: 100 mg BID; Child-Pugh B or C: not recommended
Instructions
Take with food; swallow capsule whole with liquid — do not chew, crush, or open (bitter taste; wash hands if contents contacted)
Before starting: liver function tests (all patients) and pregnancy test (females of reproductive potential)
Missed dose: skip; do not exceed 300 mg/day
For adverse reactions: reduce to 100 mg BID or interrupt; may re-escalate to 150 mg BID after resolution; discontinue if 100 mg BID not tolerated
LFT-based rules: AST/ALT >3–<5× ULN without liver-injury signs → interrupt or reduce to 100 mg BID; >3× ULN with signs, or >5× ULN → discontinue
Cautions
Elevated liver enzymes and drug-induced liver injury (incl. fatal) — LFTs at baseline, regularly ×3 mo, then periodically; most events within first 3 mo
GI disorders: diarrhea, nausea, vomiting — treat early with hydration and antidiarrheals/antiemetics; discontinue if severe and persistent
Embryo-fetal toxicity — highly effective contraception; if on oral hormonal contraceptives with vomiting/diarrhea, add alternative method
Bleeding events — use only if benefit outweighs risk in patients with known bleeding risk
GI perforation — caution after recent abdominal surgery, diverticular disease, or concomitant corticosteroids/NSAIDs; discontinue if perforation occurs
Nephrotic-range proteinuria — consider interruption for new/worsening proteinuria
Smoking decreases exposure — encourage cessation before and during treatment
Adverse reactions
Diarrhea
Nausea
Abdominal pain
Vomiting
Liver enzyme elevation
Decreased appetite
Headache
Weight decreased
Hypertension (all >=5%)
Pregnancy Can cause fetal harm (animal embryo-fetal death and structural abnormalities at <=~5× MRHD); no human data; verify pregnancy status before starting.