Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. According to the sources provided, there are no specific allergy medications that should be avoided while taking Lipitor. However, it is important to note that certain medications may interact with Lipitor and increase the risk of side effects.

One such interaction is with grapefruit juice, which can increase the levels of Lipitor in the blood and increase the risk of side effects such as muscle pain and liver damage [2]. It is recommended to avoid consuming grapefruit or grapefruit juice while taking Lipitor.

Other medications that may interact with Lipitor include antibiotics, antifungal medications, and certain heart medications [3]. It is important to inform your healthcare provider of all medications you are taking, including over-the-counter and herbal supplements, to avoid potential interactions.

In summary, while there are no specific allergy medications to avoid while taking Lipitor, it is important to be aware of potential interactions with other medications and to inform your healthcare provider of all medications you are taking to ensure safe and effective treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.fda.gov/consumers/consumer-updates/grapefruit-juice-and-some-drugs-dont-mix
[3] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details