According to the sources provided, there is no specific mention of unique adverse reactions associated with generic versions of Lipitor (atorvastatin).

The first source, DrugPatentWatch, provides information about the patent status of Lipitor but does not discuss adverse reactions associated with the drug or its generics [1].

The second source, a study published on PubMed, discusses the safety and efficacy of generic atorvastatin compared to the brand-name Lipitor. The study concludes that generic atorvastatin is therapeutically equivalent to Lipitor and has a similar safety profile [2].

The third source, an article from UnityPoint Health, discusses statin medications in general, including Lipitor. It mentions that while statins can have side effects, such as muscle pain and liver problems, these side effects are not unique to Lipitor or its generics [3].

Based on the provided sources, it can be inferred that there are no unique adverse reactions associated with generic versions of Lipitor. However, it is important to note that individual responses to medications can vary, and it is always recommended to consult with a healthcare professional for personalized advice and information regarding any medication.

Sources:
[1] DrugPatentWatch. Lipitor. Retrieved from https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] PubMed. Comparative efficacy and safety of generic atorvastatin and Lipitor in patients with primary hypercholesterolemia: a systematic review and meta-analysis. Retrieved from https://pubmed.ncbi.nlm.nih.gov/30522491/
[3] UnityPoint Health. Can You Stop Taking Statins Once You Start? Retrieved from https://www.unitypoint.org/news-and-articles/can-you-stop-taking-statins-once-you-start