According to the sources provided, it is generally safe to take Lipitor (atorvastatin) and vitamin C together. There are no known interactions between the two, and they do not appear to affect each other's effectiveness. However, it is always important to consult with a healthcare professional before taking any new medications or supplements, as they can provide personalized advice based on your individual health status and medical history.

It is worth noting that while vitamin C does not interact with Lipitor, there are some supplements that should be avoided when taking statins such as red yeast rice and St. John's Wort, as they can increase the risk of muscle damage [3]. Additionally, grapefruit and grapefruit juice should be avoided while taking Lipitor as they can increase the levels of the drug in the bloodstream, leading to an increased risk of side effects [2].

In summary, there are no known interactions between Lipitor and vitamin C, but it is always important to consult with a healthcare professional before taking any new medications or supplements.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/drug-interactions/atorvastatin-with-vitamin-c-276-0-238-3823.html
[3] https://www.consumerlab.com/answers/which-drugs-should-be-avoided-when-taking-statins/statin-supplement-interactions/