It is advisable to consult with a doctor before beginning any exercise regimen while taking Lipitor. Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood [2]. According to the Cleveland Clinic, statins such as Lipitor can cause muscle pain and weakness, which can be exacerbated by exercise [3]. Additionally, the drug can increase the risk of developing rhabdomyolysis, a rare but serious condition that can cause muscle damage and kidney failure [3]. Therefore, it is essential to speak with a healthcare provider to determine the appropriate exercise routine while taking Lipitor. They can provide guidance on the intensity and frequency of exercise, as well as monitor any potential side effects [3].

Sources:
[2] "Lipitor Oral: Uses, Side Effects, Interactions, Pictures, Warnings & Dosing." WebMD, WebMD, 2021, www.webmd.com/drugs/2/drug-3330/lipitor-oral/details.
[3] "Statins." Cleveland Clinic, 2021, my.clevelandclinic.org/health/treatments/22282-statins.