Lipitor is a medication used to treat high cholesterol levels. It is a type of statin drug that works by reducing the amount of cholesterol produced by the liver. According to the sources provided, grapefruit juice is known to interact with Lipitor, which can increase the risk of side effects. This is because grapefruit juice contains compounds that can inhibit the enzymes responsible for breaking down Lipitor in the body, leading to higher levels of the drug in the bloodstream [2][3]. However, there is no evidence to suggest that other citrus juices, such as orange or lemon juice, have a similar effect on Lipitor. It is always advisable to consult with a healthcare provider before consuming any new food or drink while taking medication, including Lipitor [2].

Sources:
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3589309/
[3] https://www.healthline.com/health/high-cholesterol/grapefruit-and-statins