Is Naltrexone Available in the UK and Ireland? What You Need to Know

Bruce Rose

Published on: 28/05/2025

Naltrexone is a non-addictive opioid antagonist that blocks the brain’s ability to feel pleasure from alcohol. Over time, drinking becomes less rewarding, reducing cravings and consumption naturally — a process known as Pharmacological Extinction. This effect is the foundation of The Sinclair Method (TSM), where individuals take Naltrexone only prior to drinking, gradually reprogramming their brain’s response to alcohol.