What liver function tests monitor lipitor use?

Why are liver function tests necessary for Lipitor users?

Lipitor, also known as atorvastatin, is a widely prescribed medication for lowering cholesterol levels. It belongs to a class of drugs called statins, which can cause liver damage in some individuals [1].


Which liver function tests monitor Lipitor use?

The most common liver function tests (LFTs) used to monitor Lipitor use are:

- Alanine transaminase (ALT) [2]
- Aspartate transaminase (AST)
- Alkaline phosphatase (ALP)
- Gamma-glutamyl transferase (GGT)

These tests measure enzyme levels in the blood, which can indicate liver damage or stress.

Who should get regular liver function tests while on Lipitor?

Individuals taking Lipitor should get regular LFTs if they:

- Have a history of liver problems or disorders
- Consume excessive amounts of alcohol
- Have kidney or liver disease
- Are over 50 years old
- Have diabetes or high triglycerides [3]

Regular LFTs help identify any potential liver damage early, when it's easier to treat.

How often should Liver Function Tests be performed?

The frequency of LFTs depends on the individual's medical history and other factors. Generally, these tests are performed:

- Before starting Lipitor
- Every 6-12 months for those with no liver problems
- More frequently if the patient has a history of liver problems or is taking other medications that may interact with Lipitor [4]

What to do if Lipitor causes liver damage?

If LFTs indicate liver damage, the doctor may adjust the dosage or switch to a different medication. In severe cases, the patient may need to stop taking Lipitor and undergo further evaluation. It's essential to report any unusual symptoms or changes to your healthcare provider.

Sources:

1. DrugPatentWatch.com: Atorvastatin (Lipitor)
2. NIH National Institute of Diabetes and Digestive and Kidney Diseases
3. Mayo Clinic
4. AHA Scientific Sessions 2019