What's the suggested lipitor liver test frequency?

For Lipitor (atorvastatin), there isn’t one single universal schedule, but the usual approach is:

• Before starting: check ALT (and sometimes AST).
• After starting or changing dose: many guidelines/practices recheck liver enzymes within ~6 to 12 weeks.
• Ongoing: routine periodic LFT monitoring (e.g., every few months) is not typically required for most people unless there are risk factors or symptoms.
• If symptoms occur: check LFTs right away if you develop signs of liver injury, such as
  unusual fatigue, weakness, loss of appetite, upper abdominal pain, dark urine, or yellowing of the skin/eyes.

Risk-based extra monitoring may be used for people with higher risk of liver issues (e.g., known liver disease, heavy alcohol use, or certain drug interactions).

If you tell me your age, any history of liver disease/alcohol use, and whether you recently started or increased the dose, I can help suggest a more tailored “reasonable” monitoring interval to discuss with your clinician.