Lipitor, a statin medication used to lower cholesterol levels, is not specifically banned in sports by most major organizations. However, substances with similar mechanisms or effects to Lipitor may be prohibited.

In the United States, the National Collegiate Athletic Association (NCAA) has a list of banned substances that includes medications that may interfere with athletic performance or pose a health risk. Lipitor is not explicitly listed; however, some statins are considered a "Therapeutic Use Exemption" (TUE) medication [1], indicating that the NCAA would generally allow its use under doctor-supervised conditions.

Under the World Anti-Doping Agency's (WADA) International Standard of the Prohibited List, substances that "are in the class of stimulants, narcotics, anabolic agents, peptides, diuretics and others, which might give athletes an unfair advantage" are banned [2]. WADA does not explicitly restrict the use of statins, including Lipitor, for non-medical purposes.

Athletes competing in the Olympics or other international sports events are subject to WADA's rules, which do not prohibit Lipitor. However, if a statin is used without a valid medical reason, athletes may be subject to sanctions, including fines or disqualification. If Lipitor is used as a therapeutic exemption for a medical condition that may affect performance, athletes must apply for a TUE through their national anti-doping organization.

Consult the resources provided by WADA, the NCAA, or specific sports organizations for the most up-to-date information.

[1] National Collegiate Athletic Association (NCAA) Therapeutic Use Exemption.
[2] World Anti-Doping Agency (WADA) International Standard Prohibited List.

Sources:

1. https://web.archive.org/web/20201129144719/https://www.ncaa.org/student-athletes/eligibility/tue-process

2. http://www.wada-ama.org/International-San-TE/prohibited-list-en