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After reviewing the available information, there is no specific evidence presented regarding liver enzyme abnormalities found in patients who have used Lipitor and Tums. However, it is important to note that both Lipitor and Tums can have potential effects on liver enzymes.

Lipitor, a medication used to treat high cholesterol, can affect liver function. According to the drug's FDA label [1], "increases in serum transaminases (ALT and AST) have been reported with HMG-CoA reductase inhibitors, including atorvastatin [Lipitor]... In most cases, these changes were transient and resolved or returned to baseline after continued therapy or after a short period of discontinuation." This indicates that while Lipitor can affect liver enzymes, these effects are typically transient and resolve on their own.

On the other hand, Tums, an antacid medication, is not known to have a direct impact on liver enzymes. However, antacids can interact with other medications, potentially affecting their absorption and metabolism [3]. This could indirectly influence liver enzymes if the affected medication is metabolized in the liver.

In conclusion, while there is no specific evidence of liver enzyme abnormalities found in patients who have used both Lipitor and Tums, both medications can have potential effects on liver enzymes. It is always recommended to consult with a healthcare provider for personalized medical advice.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8514219/>
[3] <https://www.verywellhealth.com/statin-side-effects-and-drug-interactions-698202>