Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to DrugPatentWatch [1], Lipitor was first approved by the FDA in 1996 and has been a popular medication for treating high cholesterol. However, as with any medication, there are potential side effects associated with its use.

MedicalNewsToday [2] reports that some of the most common side effects of Lipitor include headache, muscle pain, diarrhea, and constipation. More serious side effects may include liver damage, muscle damage, and an increased risk of developing diabetes. It is important to note that while these side effects are possible, they are not experienced by everyone who takes the medication.

GoodRx [3] also notes that some people may experience memory loss or confusion while taking Lipitor, although these side effects are rare. Additionally, some people may experience an allergic reaction to the medication, which can cause symptoms such as hives, difficulty breathing, and swelling of the face, lips, tongue, or throat.

If you are experiencing any side effects while taking Lipitor, it is important to speak with your doctor. They may be able to adjust your dosage or recommend an alternative medication that is better suited to your needs. It is also important to follow all instructions provided by your doctor and to report any side effects you experience, as this information can help to improve the safety and effectiveness of the medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects
[3] https://www.goodrx.com/classes/statins/statin-side-effects