Low-Dose Naltrexone (LDN) is a lower-dose formulation of the opioid antagonist naltrexone, commonly used in doses of 0.5mg to 6mg for off-label treatment of autoimmune disorders, chronic pain conditions, and neurological diseases. Unlike the standard 50mg dose used for opioid or alcohol dependence, LDN at 2mg is believed to help regulate immune responses, reduce inflammation, and improve overall well-being.