Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the body [3]. According to MyMed, it is important to take Lipitor as prescribed by the doctor, usually once a day, with or without food [3]. The medication should be taken at the same time each day, and the dosage should not be increased or decreased without consulting the doctor [3].

There is no specific information on how long one should wait to stretch after taking Lipitor. However, it is important to note that Lipitor can cause muscle pain, weakness, and tenderness, and in rare cases, muscle breakdown [3]. A study published in PubMed suggests that Lipitor can cause myopathy, a muscle disease that can cause muscle pain and weakness [2]. Therefore, it is important to consult with a doctor before starting any stretching or exercise routine, especially if one is taking Lipitor [2].

In conclusion, there is no specific information on how long one should wait to stretch after taking Lipitor. However, it is important to take Lipitor as prescribed by the doctor and to consult with a doctor before starting any stretching or exercise routine, especially if one is experiencing muscle pain or weakness [2][3].

Sources:
[2] https://pubmed.ncbi.nlm.nih.gov/30511410/
[3] https://www.mymed.com/medication/atorvastatin-lipitor/how-to-use-atorvastatin-lipitor