Lipitor is a commonly prescribed medication used to lower cholesterol levels in the body. According to the drug patent watch website [1], Lipitor's active ingredient is atorvastatin calcium, which works by inhibiting the enzyme HMG-CoA reductase, responsible for producing cholesterol in the liver. The medication is usually taken orally, with or without food, and its effectiveness depends on various factors such as dosage, duration, and patient compliance.

Exercise, particularly yoga, is recommended as an adjunct therapy for patients with high cholesterol levels [2]. According to a study published in the US National Library of Medicine [3], yoga was found to have a positive effect on lipid profile, including reducing total cholesterol, low-density lipoprotein (LDL) cholesterol, and triglycerides. The study also showed that yoga improved other cardiovascular risk factors such as blood pressure and body mass index.

There is no evidence to suggest that taking Lipitor after yoga would affect its effectiveness. However, it is important to note that certain foods, such as grapefruit, can interact with Lipitor and reduce its effectiveness. Therefore, it is recommended to avoid grapefruit and grapefruit juice while taking Lipitor [1].

In conclusion, Lipitor is a medication used to lower cholesterol levels in the body, and its effectiveness depends on various factors such as dosage, duration, and patient compliance. Yoga is recommended as an adjunct therapy for patients with high cholesterol levels, and it has been found to have a positive effect on lipid profile and other cardiovascular risk factors. There is no evidence to suggest that taking Lipitor after yoga would affect its effectiveness. However, it is important to avoid certain foods, such as grapefruit, that can interact with Lipitor and reduce its effectiveness.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.healthline.com/health/high-cholesterol/treating-with-statins/best-exercises
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/