Based on the available information, there is no evidence to suggest that lipitor and fish oil interact harmfully. According to Medical News Today, fish oil and statins, such as Lipitor, are both used to lower cholesterol levels, but they work in different ways [2]. Fish oil contains omega-3 fatty acids, which can help to reduce triglyceride levels and increase HDL (good) cholesterol levels [2]. On the other hand, Lipitor is a type of statin that works by blocking the production of cholesterol in the body [1].

While both fish oil and Lipitor can be used to improve cholesterol levels, it is important to note that they should not be taken interchangeably [2]. It is always recommended to consult with a healthcare provider before starting any new medication or supplement, including fish oil, to ensure that it is safe and appropriate for an individual's specific health needs [3].

In summary, based on the available information, there is no evidence to suggest that lipitor and fish oil interact harmfully. However, it is always important to consult with a healthcare provider before starting any new medication or supplement.

Sources:
[1] <https://www.drugpatentwatch.com/p/tradename/LIPITOR>
[2] <https://www.medicalnewstoday.com/articles/fish-oil-vs-statins>
[3] <https://www.cedars-sinai.org/blog/benefits-fish-oil-coq10.html>