Lipitor is a brand name for the drug atorvastatin, which is a medication used to treat high cholesterol levels. According to the sources provided, there is no specific dosage of Lipitor for children, as it is primarily prescribed to adults.

The first source, Drug Patent Watch [1], provides information on the patent status of Lipitor and does not mention anything about dosage for children.

The second source, Mayo Clinic [2], provides information on the proper use of atorvastatin and states that the dosage is typically based on age, medical condition, and response to treatment. However, the information is directed towards adults and does not mention children.

The third source, Healthline [3], provides general information on Lipitor dosage and states that the typical starting dose for adults is 10-20 mg per day. It also mentions that the dosage may be adjusted based on individual response to treatment and medical condition. However, there is no mention of dosage for children.

In summary, based on the sources provided, there is no specific dosage of Lipitor for children. Lipitor is primarily prescribed to adults and the dosage is typically based on age, medical condition, and response to treatment. Parents or caregivers should consult with a healthcare provider for guidance on the appropriate use of Lipitor in children.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/drugs-supplements/atorvastatin-oral-route/proper-use/drg-20067003
[3] https://www.healthline.com/health/drugs/lipitor-dosage