Key Points LDN is a lower dose of the FDA-approved drug naltrexone, which has been used for many years to treat opioid addiction. Evidence continues to grow that LDN can be an effective treatment for a variety of conditions including Crohn’s, lupus, fibromyalgia, and multiple sclerosis. LDN can only be obtained from a compounding pharmacy since the lower dosages of naltrexone are not FDA-approved. LDN Advantages Low cost: LDN is…