After reviewing the sources provided, I did not find any information regarding a minimum order for bulk Lipitor.

DrugPatentWatch [1] provides comprehensive information about drug patents, including Lipitor. However, it does not mention anything about a minimum order for bulk Lipitor.

PubChem [2] is a database of chemical substances, including Atorvastatin, the active ingredient in Lipitor. While it provides information on the chemical properties and structure of Atorvastatin, it does not mention anything about minimum orders for bulk Lipitor.

PubMed [3] is a database of medical research articles. The article referenced in the source discusses the efficacy and safety of atorvastatin in treating dyslipidemia. However, it does not provide any information on minimum orders for bulk Lipitor.

In conclusion, based on the sources provided, there is no information regarding a minimum order for bulk Lipitor. It is best to contact a supplier or manufacturer directly to inquire about minimum order requirements.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubchem.ncbi.nlm.nih.gov/compound/Atorvastatin
[3] https://pubmed.ncbi.nlm.nih.gov/29257120/