What is the suggested liver function monitoring for tigecycline?

For tigecycline, liver function monitoring is generally recommended because the drug can cause hepatobiliary adverse effects, including elevations in liver enzymes and, less commonly, cholestatic/hepatotoxic patterns.

Suggested monitoring (typical clinical practice)

• Baseline: Check AST (SGOT), ALT (SGPT), alkaline phosphatase (ALP), and total bilirubin before starting.
• During therapy:
  • At least periodically (commonly weekly if treatment is prolonged).
  • More frequently if there are pre-existing liver abnormalities, concurrent hepatotoxic drugs, or any symptoms/signs of liver injury (e.g., jaundice, dark urine, RUQ pain, unexplained nausea/vomiting).

What to do if abnormalities occur

• If transaminases rise markedly or bilirubin increases, clinicians typically repeat labs promptly and reassess need for continued tigecycline, considering alternative therapy and evaluating for other causes.

Dosing note (related but important)

• Tigecycline requires caution in hepatic impairment and dosing adjustments are used in moderate-to-severe liver dysfunction (clinicians follow the product labeling).

If you tell me the setting (hospital vs outpatient), planned duration, and whether the patient has baseline liver disease or abnormal labs, I can suggest a more concrete schedule (e.g., how often to recheck and which parameters).