What happens after drug detox and recovery during opioid abstinence
Heroin detox is only the very beginning of the treatment process - here's what happens after drug detox:
A rapid and comfortable detox from heroin and other opiates is an important step, but it is not a complete solution to addiction. The long process of chemical recovery in the brain — and throughout the body — only begins after detoxification. This process often takes several months, as the body gradually restores the natural balance of endorphins, enkephalins, dopamine, serotonin and other neurotransmitters that were previously affected by prolonged drug use
The same applies to the immune, digestive, endocrine and other systems. The body must relearn how to function without heroin, methadone, fentanyl, cocaine and other artificial stimulants.
In addition, after drugs detox the body may begin to “speak up”, revealing symptoms of underlying health conditions that were previously masked by drug use. Patients often say: “Nothing hurt before — I felt active, carefree, even well while using my drug of choice.”
After drug detox: Understanding post-acute withdrawal syndrome (PAWS) & recovery
Common symptoms after opiate detox
Our experience working with patients since 2001 shows that most individuals, to a greater or lesser extent, experience some of the following symptoms after detox:
- Insomnia, including difficulty falling asleep, frequent night waking and waking unrefreshed
- Changes in appetite, often with weight loss, or less commonly increased appetite
- Digestive disturbances, ranging from diarrhoea to constipation, sometimes stomach cramps
- Fatigue, weakness, low energy and reduced motivation
- Low mood or mood swings, pessimism, dissatisfaction with sober life, irritability and conflict behaviour
- Recurring withdrawal-like symptoms (“cold turkey”), even many days after clearing opioids from the body, such as chills, goosebumps, tremors, waves of heat or cold, sweating, tearing, sneezing, occasional coughing and abdominal cramps
Patients are often confused by these symptoms, as they know they are no longer using substances, yet their body seems to reproduce withdrawal sensations intermittently.
Opiate detox recovery: What to expect after heroin withdrawal
How long does post-acute withdrawal syndrome (PAWS) last?
These symptoms may last from several days to several weeks. The duration depends on multiple factors, including genetic predisposition, length and intensity of substance use, and the presence of other medical conditions (including previously undiagnosed ones).
It is also important to note that each subsequent detox can be more difficult than the previous one. For this reason, maintaining abstinence is strongly recommended. This may include support with medications such as naltrexone, psychological therapy, and appropriate treatment of any co-existing conditions — all aimed at preventing relapse and avoiding repeated detox cycles.
Treatment and recovery
The management of early and post-acute withdrawal symptoms should be carried out by local specialists and rehabilitation services. Treatment must be timely, comprehensive and sustained until the patient is fully stabilised and adapted to life without substances.
Because each individual’s condition is different, treatment should be tailored to specific symptoms and confirmed diagnoses. Many patients will require medical assessment and, where appropriate, pharmacological support for sleep, mood and the autonomic nervous system, as well as treatment for any newly identified health conditions.
Recovery and rehabilitation require patience and persistence. Support should continue even after symptoms improve, to ensure long-term stability and a full return to normal functioning.
FAQ
1. What is post-acute withdrawal syndrome (PAWS)?
Post-acute withdrawal syndrome (PAWS) refers to a set of persistent symptoms that can continue after the initial detox phase. These may include sleep disturbances, mood changes, low energy and intermittent physical discomfort. PAWS is common after opioid and heroin use and reflects the time the brain needs to restore normal function.
2. How long do symptoms last after opioid detox?
Symptoms can last from a few days to several weeks, depending on individual factors such as duration of use and overall health.
3. Is it normal to feel withdrawal like symptoms after detox?
Yes. Many patients experience post-acute withdrawal symptoms even after detox due to brain recovery.
4. Can detox cure addiction?
No. Detox is only the first step. Long-term treatment and support are essential for recovery.
Treatment for international patients
We work with patients from the UK, Europe and worldwide. Our team can assist with treatment planning, travel arrangements and Naltrexone implants and injections to prevent relapse.
Over 20 years of clinical experience in addiction treatment
Medically supervised detox and recovery support
Individualised treatment plans for international patients