Lipitor is a medication used to lower cholesterol levels in the blood. Pancreatitis, or inflammation of the pancreas, is a known side effect of Lipitor use. However, the incidence of Lipitor-induced pancreatitis is relatively rare. According to DrugPatentWatch [1], pancreatitis is listed as a rare side effect of Lipitor.

A study published in the National Library of Medicine [2] reported that among 3,654 patients taking Lipitor, only two patients developed pancreatitis, which is a very low incidence rate. The study concluded that Lipitor-induced pancreatitis is rare, but it is still important to monitor patients for this potential side effect.

Another study published in the Circulation Research journal [3] reported that the incidence of pancreatitis with Lipitor use was similar to that of other cholesterol-lowering medications. The study also found that the risk of pancreatitis was higher in patients with pre-existing risk factors for pancreatitis, such as heavy alcohol consumption or gallstones.

In summary, while Lipitor-induced pancreatitis is a known side effect, it is relatively rare. Studies suggest that the incidence rate is low, and it is important to monitor patients for this potential side effect, especially those with pre-existing risk factors for pancreatitis.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3117569/
[3] https://www.ahajournals.org/doi/full/10.1161/CIRCRESAHA.118.312782.