How is the Sinclair Method different from Antabuse?

Naltrexone, used in the Sinclair Method, and disulfiram (Antabuse) are the two best-known prescription medicines for alcohol use. They are completely different in how they work, in their philosophy, and in what they feel like to take.

Disulfiram blocks the enzyme that breaks down acetaldehyde, a by-product of alcohol. Drink while on it and acetaldehyde builds up fast, bringing flushing, nausea, vomiting, headache and palpitations, a deeply unpleasant reaction that can last hours and, rarely, can be serious.

Antabuse is a deterrent. The mechanism is fear of the consequence. It works for people who are committed to stopping and want a chemical reminder of the cost of a drink. The bottleneck is compliance, since many stop taking it when they want to drink again.

Naltrexone blocks the brain's opioid receptors, so alcohol no longer triggers the reward it used to. Drinking on naltrexone is not unpleasant; it simply feels less rewarding, and it does not make you ill.

The method works by extinction: each drink taken with naltrexone on board unlearns the link between alcohol and pleasure, and over three to four months the urge fades because the reward has faded. You do not need willpower to stop drinking; you need the discipline to take the tablet on time.

Antabuse makes sense if you have already decided to stop and want a safeguard against an impulsive drink, often after a detox. It is rarely the right first medicine.

The Sinclair Method makes sense if your drinking is reward-driven, you want to cut down rather than stop outright, and you are willing to keep drinking while the extinction does its work. And cutting down is not the only destination, many people who start out just wanting less find, in time, that they stop. If you are not sure which fits, tell us about your drinking and we will talk it through.

The online assessment is quick. A doctor reviews it and, if naltrexone is right for you, prescribes it, dispensed and delivered to your door.

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