LDNScience.org has a page on their site in the ‘patients’ sub-category where they give you a list of LdN suppliers that you can buy from. I found this really helpful, especially since each site is most likely to have been vetted by LDNScience themselves, which are a very legit organization.
Naltrexone is an opioid antagonist originally used to treat opioid and alcohol addiction. Over the past two decades, low dose naltrexone (LDN—typically <5 mg/day) has gained popularity as an off‐label treatment of several autoimmune diseases. You can purchase from these websites:
Low Dose Naltrexone (LDN) is taken at bedtime and prescribed doses range typically between 3mg and 4.5mg, but we can compound any dose desired. Belmar Pharmacy’s LDN Tablets are immediate release and are scored in half for easy dose titration. LDN is only available through compounding pharmacies and LDN Tablets are available only at Belmar Pharmacy. You can purchase from these websites: www.lowdosenaltrexone.org.
2. The site may contain content, the use of which may have potential risks and be harmful.