Lipitor is a medication used to lower cholesterol levels in the blood and is generally considered safe for use in adults. However, it is not recommended for use during pregnancy due to potential risks to the developing fetus [3]. Studies have shown that the use of Lipitor during pregnancy can cause harm to the developing fetus, including birth defects and developmental delays [2]. Lipitor is classified as a pregnancy category X drug, meaning that it is contraindicated in pregnancy due to the potential risks to the fetus [1]. Women who are pregnant or planning to become pregnant should not take Lipitor unless the potential benefits outweigh the risks, and only under the supervision of a healthcare provider [3]. It is important for women who are taking Lipitor and become pregnant to inform their healthcare provider immediately to discuss the potential risks and benefits of continuing or discontinuing the medication [2].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/books/NBK501361/
[3] https://www.fda.gov/media/150774/download