Based on the available information, there can be potential risks when taking Lipitor with fish oil, although both are commonly used to lower cholesterol levels.

Lipitor, also known as atorvastatin, is a statin medication that works by blocking a substance your body needs to make cholesterol [1]. On the other hand, fish oil is a dietary supplement that contains omega-3 fatty acids, which are known to have heart health benefits [2].

According to a study published in the Journal of Clinical Lipidology, combining fish oil with statins like Lipitor can increase the risk of muscle damage, known as myopathy [3]. This is because both fish oil and statins can affect the body's metabolism of fats, potentially leading to an increased risk of side effects [3].

However, it is important to note that the risk of myopathy is generally low, and the benefits of taking Lipitor and fish oil may outweigh the potential risks for many individuals [3]. As with any medication or supplement, it is essential to consult with a healthcare provider before starting or stopping any new treatment.

In summary, while there are potential risks associated with taking Lipitor and fish oil together, the decision to use both should be made in consultation with a healthcare provider, who can weigh the potential benefits and risks based on an individual's specific medical history and current health status.

Sources:

[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.medicalnewstoday.com/articles/fish-oil-vs-statins>
[3] <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320142/>