The
Bluefield Clinic
Alcohol Recovery
Why Didn't Naltrexone Work For You?
Firstly, you are not alone
If you’ve tried naltrexone and it didn’t seem to make a difference, you’re not alone.
Many people are prescribed this medication with the expectation that it will reduce cravings and reduce their alcohol consumption relatively quickly and are disappointed by the outcome.
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This can be frustrating - particularly when you’ve taken a proactive step to address your drinking.
Why naltrexone may not have worked for you so far
Naltrexone is recognised as an effective treatment for alochol issues. However, if it hasn't worked for you so far, this could be due to a number of common reasons:
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​​unaligned timing of dosing;
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lack of supportive therapy;
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unpleasant side effects;
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not aware of what naltrexone does and doesn't do;
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biological variations in response. (Mayo Clinic/drg - 20068408) ​
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Dosing and timing
How and when naltrexone is taken can significantly influence how effective it is.
Naltrexone may be prescribed as a daily medication or, following The Sinclair Method (TSM), when it is prescribed in a targeted way before drinking.
Research suggests that for some individuals, targeted dosing taken approximately 1–2 hours before alcohol consumption can be more effective than taking the medication at unrelated or set times.
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With TSM, naltrexone is taken before drinking with the aim of gradually reducing the rewarding effects of alcohol. Over time, this may weaken the learned association between alcohol and reward, helping reduce cravings and drinking behaviour.
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This process is typically gradual rather than immediate and depends heavily on consistency and correct timing. If naltrexone is taken inconsistently, too late or without a structured approach, people may feel it didn’t work. However, it is possible in such circumstances, that the medication was not being used optimally.
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Research into targeted naltrexone protocols, including the work of J. David Sinclair and colleagues, has demonstrated positive long-term outcomes for many individuals using this approach.
(J.D. Sinclair et al.; Alcohol and Alcoholism, 2001).
Lack of support -
therapy makes a difference
Medication is only one part of successful treatment.
Naltrexone, when used according to TSM, can be a helpful support, but it is not a complete solution. While it may reduce cravings and the rewarding effects of alcohol, it does not address the underlying habits, emotional triggers or psychological factors that contribute to alcohol use.
Alcohol use is often shaped by behavioural, emotional and situational influences. Without addressing these, lasting change can be difficult - even with medication.
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Structured psychological support, such as Cognitive Behavioral Therapy (CBT) or counselling, can help people:
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understand patterns and triggers;
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develop healthier coping strategies;
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strengthen motivation and consistency;
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reduce the risk of relapse over time.
Research suggests outcomes can improve when medication is combined with structured psychological treatment. (Anton et al., JAMA, 2006).
Unsure about what naltrexone can and cannot do
Naltrexone works by reducing the rewarding or euphoric effects of alcohol. However, it does not prevent intoxication, lower blood alcohol concentration (BAC) or treat physical withdrawal symptoms. People who are physically dependent on alcohol may still require a medically supervised detox.
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The primary, evidence-based role of naltrexone here is to help reduce heavy drinking and lower the risk of relapse. It isn't a cure for immediate, lifelong abstinence. If hopes of this kind are entertained, people can be disappointed or believe it has failed when it may have worked as designed.​
(Streeton C et al. Alcohol Alcohol. 2001)
Side-effects
Some people experience side effects when starting naltrexone, particularly during the first few days or weeks of treatment. Common effects can include nausea, headaches, fatigue, dizziness, stomach discomfort or a general feeling of lethargy.
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For some individuals, these symptoms are mild and temporary, while for others they can feel significant enough to interfere with daily functioning or can deter people from continuing the treatment.
Starting at a lower dose and gradually increasing it may help improve tolerability, but if side effects persist, it could be beneficial to consult a healthcare professional who is familiar with naltrexone.
(Naltrexone [oral route] side-effects & dosage - Mayo Clinic)
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Genetic & individual variations
How we can help
Many people who feel that naltrexone didn’t work may experience different results when it is used within a structured, evidence-based treatment approach. This may involve:
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reviewing how the medication was previously used;
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liaising with your prescriber to refine dosing timing and consistency;
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integrating psychological support and behavioural strategies;
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tailoring treatment to individual goals and circumstances.
Research and clinical guidelines suggest that treatment outcomes can be influenced by factors such as adherence, therapeutic support, treatment structure and individual biological differences.
We provide confidential online alcohol counselling and treatment across Australia. Our approach combines clinical psychological therapy with medication support where appropriate, including the use of naltrexone according to TSM. This allows treatment to be tailored to the individual - whether the goal is moderation or abstinence - while addressing both the behavioural and physiological aspects of alcohol use with a view to sustainable change.