According to the sources provided, there is no specific time frame mentioned for how long one should wait after taking Lipitor before taking aspirin. However, it is important to consult with a healthcare professional before taking any medication, especially if you are taking multiple medications simultaneously.

Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood [1]. Aspirin, on the other hand, is a nonsteroidal anti-inflammatory drug (NSAID) that is commonly used for pain relief and to reduce inflammation [2].

A study published in the Journal of Experimental & Clinical Cancer Research found that atorvastatin and aspirin had a synergistic effect in inhibiting the growth of cancer cells in vitro [3]. However, the study did not mention any specific guidelines for the timing of taking these medications together.

It is important to note that both atorvastatin and aspirin can have potential side effects and drug interactions. For example, taking aspirin with atorvastatin may increase the risk of bleeding [2]. Therefore, it is crucial to consult with a healthcare professional before taking these medications together or adjusting their dosages.

In summary, there is no specific time frame mentioned for how long one should wait after taking Lipitor before taking aspirin. It is important to consult with a healthcare professional before taking any medication, especially if you are taking multiple medications simultaneously.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4527537/
[3] https://jeccr.biomedcentral.com/articles/10.1186/s13046-016-0304-4