: Standard retail pharmacies (like CVS or Boots) usually only stock 50mg tablets. To get LDN, you must use a compounding pharmacy that can precisely measure and create micro-doses in capsule, tablet, or liquid form.
: It is illegal to purchase Naltrexone without a prescription in the US, UK, and Canada. where to buy low dose naltrexone
For US residents, the easiest path is often a telehealth platform that combines a doctor's consultation with a pharmacy partner. Can You Get Naltrexone Over the Counter? - ChoicePoint : Standard retail pharmacies (like CVS or Boots)