Naltrexone is an opioid receptor blocker. Narcotics like oxycodone found in Percocet and hydrocodone found in Vicodin are opioids. When they bind to an opioid receptor narcotics regulate pain. We have natural narcotics (opioids) in our bodies called endorphins which also regulate pain and perform other functions.
There is a theory, with minimal scientific support, suggesting endorphins also regulate the immune system balancing both under or over production of immune system cells. This should help improve auto-immune illnesses where the immune system turns against us when it is over active like in rheumatoid arthritis or possibly in Lyme disease. Because it also helps to turn on an under-active immune system some believe it could also help in Lyme disease. Yes it is possible having a Lyme (borrelia) infection can trigger an autoimmune illness which causes things like pain and fatigue. On the other hand borrelia can also suppress the immune system.
Why is it low? What does it do?
Low dose naltrexone (LDN) is “low” because