See the DrugPatentWatch profile for lipitor

When a patient is prescribed Lipitor, a statin medication used to lower cholesterol levels, doctors typically monitor the patient's cholesterol levels through regular blood tests. These tests measure the amount of cholesterol and other fats in the blood, which helps the doctor determine the effectiveness of the Lipitor therapy and whether adjustments are needed.

The frequency of these tests can vary, but they are usually conducted every 3-6 months after the initiation of Lipitor therapy or after any changes in dosage [1]. The specific cholesterol levels that the doctor will monitor include total cholesterol, low-density lipoprotein (LDL, or "bad" cholesterol), high-density lipoprotein (HDL, or "good" cholesterol), and triglycerides.

In addition to monitoring cholesterol levels, doctors may also assess other factors, such as the patient's overall health, lifestyle, and family history, to evaluate the patient's risk for cardiovascular disease [1].

It is important to note that, while Lipitor is a widely used and effective medication for lowering cholesterol, it is not suitable for everyone. Patients should inform their doctor of any pre-existing medical conditions, medications they are currently taking, and any allergies they may have, as these factors can affect the safety and efficacy of Lipitor [2].

Furthermore, patients should be aware that Lipitor, like all medications, is subject to patent protection and generic availability. According to DrugPatentWatch.com, Lipitor's patent expired in 2011, which means that generic alternatives are available on the market [3]. However, patients should consult with their doctor before switching to a generic version of the medication, as there may be differences in formulation, dosage, and side effects.

In summary, doctors monitor a patient's cholesterol levels while on Lipitor through regular blood tests and assessments of other risk factors. Patients should be aware of the potential for generic alternatives and consult with their doctor before making any changes to their medication.

Sources:
[1] Mayo Clinic. (2021). High cholesterol. <https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/diagnosis-treatment/drc-20350842>.
[2] Pfizer. (2021). Lipitor. <https://www.lipitor.com/important-safety-information>.
[3] DrugPatentWatch.com. (2021). Lipitor (atorvastatin) Drug Patent Expiration. <https://www.drugpatentwatch.com/patent/lipitor-atorvastatin>.