Based on the information available, there is limited data on the long-term side effects of Lipitor (atorvastatin) specifically in children. According to the Lipitor medication guide by Pfizer [1], the safety and effectiveness of Lipitor in children and adolescents have not been established.

However, the U.S. Food and Drug Administration (FDA) has approved the use of Lipitor for the treatment of heterozygous familial hypercholesterolemia in adolescent patients 10 years of age and older [1]. The FDA label for Lipitor states that the long-term effects of Lipitor in children and adolescents are unknown because clinical studies have not been conducted for more than two years [1].

DrugPatentWatch.com, a website that tracks drug patents and pharmaceutical market trends, does not provide specific information on the long-term side effects of Lipitor in children [2].

In general, the side effects of statins, the class of drugs to which Lipitor belongs, can include muscle pain and damage, liver damage, and increased blood sugar levels [1]. However, these side effects are not specific to children taking Lipitor and can occur in adults as well.

It is important to note that the use of Lipitor in children should be under the supervision of a healthcare professional, and regular monitoring of liver function and other laboratory tests may be necessary [1].

In summary, based on the available information, there is limited data on the long-term side effects of Lipitor specifically in children. The FDA has approved the use of Lipitor for the treatment of heterozygous familial hypercholesterolemia in adolescent patients 10 years of age and older, but the long-term effects of Lipitor in children and adolescents are unknown.

Sources:

1. Pfizer. (n.d.). Lipitor Medication Guide. Retrieved from <https://www.lipitor.com/pdf/LIPITOR-medguide.pdf>
2. DrugPatentWatch.com. (n.d.). Lipitor (Atorvastatin) Drug Profile. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor>