Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood, while vitamin C is a nutrient that plays a crucial role in the body's immune system and overall health. According to Drugs.com, there are no known interactions between Lipitor and vitamin C [2]. However, it is always advisable to consult with a healthcare professional before taking any new medications or supplements, as they can provide personalized advice based on individual health status and medication history.

While Lipitor is generally well-tolerated, it can cause some side effects, including muscle pain, weakness, and tenderness, according to DrugPatentWatch [1]. These side effects are usually mild and go away on their own, but in rare cases, they can be severe and require medical attention. Lipitor can also cause liver problems, such as elevated liver enzymes and liver damage, although these side effects are uncommon [1].

On the other hand, vitamin C is generally safe and well-tolerated, with few side effects when taken in recommended doses. However, taking high doses of vitamin C supplements can cause gastrointestinal symptoms such as diarrhea, nausea, and stomach cramps [3].

In conclusion, there are no known interactions between Lipitor and vitamin C, but it is always advisable to consult with a healthcare professional before taking any new medications or supplements. Lipitor can cause muscle pain, weakness, and liver problems, while vitamin C is generally safe but can cause gastrointestinal symptoms at high doses [1][2][3].

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.ncbi.nlm.nih.gov/pmc/articles/PMC3885376/