Atorvastatin (Lipitor) and the liver‑enzyme picture
When people start Lipitor, a routine blood test called a “liver‑function panel” is usually ordered. The panel checks several enzymes that give clues about how the liver is doing.
- AST (aspartate aminotransferase)
- ALT (alanine aminotransferase)
These two enzymes are the most commonly reported to rise when someone is on atorvastatin. In most cases the elevations are mild and transient.
Occasionally, the panel will also show a bump in:
- Alkaline phosphatase (ALP)
- GGT (gamma‑glutamyl transferase)
These are less frequently affected but can go up, especially in situations where the liver is already under stress from other causes (e.g., alcohol, hepatitis).
Why the rise matters
A small rise in AST/ALT is usually harmless and often resolves on its own. A persistent elevation, especially if it climbs above 3–5 times the upper limit of normal, can signal that the liver is being affected and may warrant a pause or change in medication.
Bottom line
- AST and ALT are the primary liver enzymes that atorvastatin (Lipitor) can raise.
- ALP and GGT may also increase, but less commonly.
If you’re on Lipitor and have any concerns about your liver enzymes, it’s best to discuss the results with your doctor—he or she can interpret the numbers in the context of your overall health and decide whether any action is needed.