Lipitor is a brand name for the drug atorvastatin, which is a type of statin used to lower cholesterol levels in the body. There is limited information available on whether Lipitor reduces probiotic effectiveness. However, it is important to note that some studies suggest that statins may have a negative impact on gut microbiota, which could potentially affect probiotic effectiveness [2].

A study published in the journal Nature found that statins, including atorvastatin, can cause changes in gut microbiota, reducing the abundance of certain beneficial bacteria [2]. Another study published in the journal PLoS One found that statin use was associated with changes in the gut microbiota, including a decrease in the diversity of bacteria [3]. These changes in gut microbiota could potentially affect the effectiveness of probiotics, which are live microorganisms that provide health benefits when consumed in adequate amounts [3].

However, it is important to note that the available research on the effects of statins on gut microbiota is limited, and more studies are needed to fully understand the potential impact of statins on probiotic effectiveness. Additionally, the specific effects of Lipitor on gut microbiota and probiotic effectiveness are not well-established.

In summary, while there is some evidence to suggest that statins, including Lipitor, may have a negative impact on gut microbiota, the specific effects on probiotic effectiveness are not well-established. Further research is needed to fully understand the potential impact of Lipitor on gut microbiota and probiotic effectiveness.

Sources:
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2904929/
[3] https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0185716