Lipitor is a brand name for the drug atorvastatin, which is a type of medication called a statin. Statins are used to lower cholesterol levels in the blood and reduce the risk of heart disease [1]. However, like all medications, Lipitor can have side effects, including irregular heartbeats.

If you experience irregular heartbeats while taking Lipitor, it is important to talk to your doctor immediately. They may recommend reducing the dose of Lipitor or switching to a different medication. In some cases, the irregular heartbeats may be caused by an underlying condition, such as atrial fibrillation, which will need to be treated separately [2].

It is also important to note that not everyone who takes Lipitor will experience irregular heartbeats. In a study published in the Journal of the American College of Cardiology, researchers found that the incidence of new-onset atrial fibrillation in patients taking statins was not significantly higher than in patients not taking statins [3].

In conclusion, if you experience irregular heartbeats while taking Lipitor, it is important to talk to your doctor immediately. They may recommend reducing the dose of Lipitor or switching to a different medication. It is also important to note that not everyone who takes Lipitor will experience irregular heartbeats, and that in some cases, the irregular heartbeats may be caused by an underlying condition that will need to be treated separately.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.nhs.uk/conditions/statins/considerations/
[3] https://pubmed.ncbi.nlm.nih.gov/16360963/