The sources provided do not offer any information or guidance on how soon before hot yoga one should take Lipitor. Lipitor is a prescription medication used to lower cholesterol levels in the blood, while hot yoga is a type of yoga performed in a heated room. However, it is important to consult with a healthcare provider before taking any medication and engaging in physical activity, especially if you have any underlying medical conditions or concerns. It is also recommended to stay hydrated and take breaks as needed during hot yoga sessions to prevent overheating and dehydration.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.everydayhealth.com/yoga/hot-yoga-it-safe-how-hot-does-it-get/
[3] https://www.bambuhotyoga.com/product/hot-yoga-1-5-mm-travel-mat/