After conducting a thorough search, I was unable to find a specific recommended dosage of Lyrica (pregabalin) for endurance training. Lyrica is a prescription medication primarily used to treat epilepsy, fibromyalgia, neuropathic pain, and generalized anxiety disorder [1].

It is important to note that using prescription medications for purposes other than those approved by regulatory agencies, such as the FDA, can be dangerous and may lead to unintended side effects [2]. Therefore, it is strongly advised to consult with a healthcare professional before starting or altering any medication regimen, including Lyrica.

When considering medications for endurance training, it is crucial to prioritize safety and consult with a healthcare professional to ensure the chosen treatment aligns with the individual's health goals and needs.

Sources:

[1] FDA. (2019). Pregabalin. In Medication Guide. Retrieved from <https://www.fda.gov/media/74230/download>

[2] NIH. (2021). Off-Label Drug Use. In MedlinePlus. Retrieved from <https://medlineplus.gov/ency/article/002114.htm>

[3] DrugPatentWatch.com. (n.d.). Pregabalin. Retrieved from <https://www.drugpatentwatch.com/drugs/pregabalin>