What is the recommended frequency of liver tests during tigecycline therapy?

During tigecycline therapy, the usual recommendation is to check liver function tests (LFTs) at baseline and then periodically during treatment—most commonly at least once weekly (or more often if you already have liver impairment or if labs are abnormal).

Because specific schedules can vary by guideline and by patient risk factors, clinicians often increase monitoring (e.g., every few days or more frequently) if:

• baseline AST/ALT or bilirubin is elevated,
• the patient has hepatic impairment,
• there are symptoms of liver injury (e.g., jaundice, dark urine, right upper quadrant pain),
• or there is a rising trend in LFTs.

If you tell me the patient context (baseline LFTs, duration, liver disease, dose), I can help suggest a more tailored monitoring cadence.