Lipitor is a prescription medication used to lower cholesterol levels in the blood. It belongs to a class of drugs called statins. According to the sources provided, there is no evidence to suggest that drinking lemonade while taking Lipitor poses any risks. However, it is important to note that consuming grapefruit or grapefruit juice while taking statins can increase the risk of side effects [2]. This is because grapefruit can interfere with the enzymes responsible for breaking down statins in the body, leading to higher levels of the drug in the bloodstream. Therefore, it is recommended that patients taking statins avoid consuming grapefruit or grapefruit juice [2][3]. While there is no evidence to suggest that lemonade has a similar effect, patients should always consult with their healthcare provider or pharmacist before making any changes to their diet or medication regimen [3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.healthline.com/health/high-cholesterol/grapefruit-and-statins
[3] https://www.mayoclinic.org/healthy-lifestyle/consumer-health/expert-answers/food-and-nutrition/faq-20057918