Lipitor (atorvastatin) is a medication used to treat high cholesterol levels. Serotonin syndrome is a rare but potentially life-threatening condition that can be caused by certain medications, including Lipitor. The symptoms of Lipitor-induced serotonin syndrome can include confusion, agitation, restlessness, fever, rapid heart rate, high blood pressure, dilated pupils, muscle rigidity, tremors, sweating, and diarrhea [2].

Serotonin syndrome occurs when there is an excess of serotonin in the body. Lipitor can increase serotonin levels by interacting with other medications that also affect serotonin levels or by increasing the availability of serotonin in the brain [3]. In some cases, serotonin syndrome can be fatal if not treated promptly.

If you are taking Lipitor and experience any of the symptoms of serotonin syndrome, it is important to seek medical attention immediately. Your healthcare provider may need to adjust your medication or prescribe additional treatment to manage your symptoms [1].

Sources:
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5370302/
[2] https://pubmed.ncbi.nlm.nih.gov/25903219/
[3] https://www.drugpatentwatch.com/p/tradename/LIPITOR