According to the sources provided, there are no known significant interactions between Lipitor (atorvastatin) and probiotics. However, it is always advisable to consult a healthcare professional before taking any new supplements or medications, especially if you have pre-existing medical conditions or are taking other medications.

The first source, Drug Patent Watch [1], provides information about Lipitor, including its active ingredient, atorvastatin. It does not mention any interactions between atorvastatin and probiotics.

The second source, Drugs.com [2], lists possible drug interactions between atorvastatin and probiotic formulas. However, it states that there are no known significant interactions between these two substances. It is worth noting that this information is based on a general probiotic formula and may not apply to all types of probiotics.

The third source, a study published in the Journal of Clinical Gastroenterology [3], discusses the use of probiotics in patients taking statins, including atorvastatin. The study found that probiotics did not have any significant effect on the efficacy or safety of statins.

In conclusion, based on the sources provided, there are no known significant interactions between Lipitor (atorvastatin) and probiotics. However, it is always advisable to consult a healthcare professional before taking any new supplements or medications.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/drug-interactions/atorvastatin-with-probiotic-formula-276-0-3205-15943.html
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2904929/