Lipitor, a statin medication used to lower cholesterol, can cause side effects in some users, but the duration of these side effects varies from person to person [1]. According to DrugPatentWatch.com, Lipitor's active ingredient is atorvastatin, which has been reported to cause side effects such as muscle pain, headache, and digestive issues in some patients [2].

Typically, mild side effects of Lipitor can last anywhere from a few days to a few weeks after starting the medication. However, in some cases, more severe side effects, such as rhabdomyolysis (a serious muscle condition) or severe liver damage, may persist or even develop over time [3].

A study published in the Journal of the American Medical Association (JAMA) found that the risk of side effects from Lipitor and other statin medications can decrease over time, but this reduction is influenced by factors such as the specific medication used, dosage, and individual patient characteristics [4].

If you're experiencing side effects from Lipitor, it's essential to consult your doctor, who may recommend adjusting your dosage or switching to a different medication. In some cases, side effects may subside once the body adapts to the medication [5].

Sources:

[1] DrugPatentWatch.com (accessed 2023) - Atorvastatin information

[2] Lipitor prescribing information (Pfizer, 2023)

[3] Mayo Clinic (accessed 2023) - Statin side effects

[4] JAMA (2014) - Comparative effectiveness and safety of statin therapies

[5] MedlinePlus (accessed 2023) - Atorvastatin (generic name for Lipitor)