Lipitor is a medication that is used to lower cholesterol levels in the blood. It contains the active ingredient atorvastatin and is classified as a statin drug [1]. According to the Mayo Clinic, statins are generally safe for most people, but like all medications, they can cause side effects [2]. The most common side effects of Lipitor include muscle pain, weakness, and tenderness, as well as digestive problems like nausea, diarrhea, and constipation [2].

As for taking Lipitor before high-intensity workouts, there is no information available in the provided sources regarding its safety or efficacy in this context. However, it is important to note that muscle pain and weakness are common side effects of Lipitor, and these symptoms could potentially be exacerbated by high-intensity exercise. Therefore, it may be advisable to speak with a healthcare provider before taking Lipitor before engaging in high-intensity workouts.

In summary, Lipitor is generally safe for most people, but it can cause side effects such as muscle pain and digestive problems [2]. There is no information available in the provided sources regarding the safety or efficacy of taking Lipitor before high-intensity workouts, but it may be advisable to speak with a healthcare provider before doing so [2].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.goodrx.com/atorvastatin/what-is