How Long
Does Heroin Withdrawal Last? What to Expect

Heroin withdrawal is one of the most physically intense experiences a
person in early recovery faces. For many people, fear of withdrawal is
the biggest barrier to seeking help. Understanding exactly what happens
– and when – can make the difference between taking that first step and
continuing to use.

At Cherrywood House, we’ve supported hundreds of people through
heroin withdrawal safely and with clinical oversight. This guide gives
you the clear, honest information you need to understand the
process.

What Is Heroin Withdrawal?

When the body has become physically dependent on heroin – or any
opioid – it adapts to the drug’s presence. Over time, the brain reduces
its natural production of endorphins, relying instead on the drug to
fill that role. When heroin is removed, the nervous system experiences a
rebound effect known as withdrawal.

Withdrawal is not a punishment. It is a predictable physiological
process that occurs when any opioid-dependent person stops using. While
deeply uncomfortable, it is manageable – and with the right support,
significantly less severe than going through it alone.

The Heroin Withdrawal
Timeline

Withdrawal symptoms follow a predictable pattern, though the exact
timing and intensity vary based on how long someone has been using, how
much they’ve been using, and whether other substances are involved.

Hours 6-12: Early Symptoms
Begin

The first symptoms typically appear 6-12 hours after the last dose.
These early symptoms include:

• Anxiety and restlessness – an uncomfortable,
  agitated feeling that is difficult to settle
• Yawning and runny nose
• Sweating, often cold and clammy
• Muscle aches beginning in the legs and back
• Drug cravings – strong urges to use that increase
  as symptoms intensify

At this stage, many people feel they have severe flu coming on.

Hours 24-48: Symptoms
Intensify

This is when withdrawal becomes genuinely challenging. Symptoms
increase in severity:

• Nausea and vomiting
• Diarrhoea and abdominal cramping
• Insomnia – inability to sleep despite
  exhaustion
• Chills and goosebumps (the term “cold turkey”
  refers to this)
• Dilated pupils and sensitivity to light
• Elevated heart rate and blood pressure
• Severe muscle spasms and leg restlessness
  (associated with the term “kicking the habit”)

This 24-72 hour window is when people are most at risk of relapse –
not because they want to return to using, but because the physical
discomfort becomes overwhelming.

Hours 48-72: Peak Withdrawal

Withdrawal typically peaks between 48 and 72 hours after the last
use. This is the hardest phase. Everything described above is at its
most intense. For most people, the peak lasts 12-24 hours before
symptoms begin to ease.

This is why medically supervised withdrawal at a facility
like Cherrywood House is so important. At peak withdrawal, the
body is under significant physiological stress. Without clinical
oversight, there are risks including dehydration from vomiting,
electrolyte imbalance, and cardiovascular strain.

Days 4-7: Gradual Improvement

From day 4 onwards, most acute physical symptoms begin to ease.
Nausea, vomiting, and cramping reduce significantly. Sleep slowly begins
to return, though often disrupted. Muscle aches decrease. Energy levels
start to stabilise.

Most people describe this phase as “still miserable but
manageable.”

Week 2 and Beyond:
Post-Acute Withdrawal

After the acute withdrawal phase, many people experience what is
known as Post-Acute Withdrawal Syndrome (PAWS). This is
a longer-lasting phase of subtler symptoms that can persist for weeks to
months:

• Sleep disturbances
• Low mood or depression
• Anxiety and irritability
• Low motivation and difficulty concentrating
• Strong cravings triggered by stress or
  environment

PAWS is one of the reasons that getting through detox alone is not
sufficient for lasting recovery. The weeks and months following physical
withdrawal are when relapse risk remains high – and when therapeutic
support is most critical.

Why Heroin Withdrawal
Feels So Severe

Heroin is a short-acting opioid, which means it clears the body
relatively quickly, causing a rapid and intense withdrawal onset. This
is in contrast to longer-acting opioids (like methadone), which produce
a more gradual but prolonged withdrawal experience.

The severity is amplified by:

• Duration of use – the longer someone has used, the
  more adapted the brain becomes
• Dose size – higher doses create greater physical
  dependence
• Polysubstance use – using multiple substances
  alongside heroin complicates and intensifies withdrawal
• Underlying mental health conditions – anxiety and
  depression can worsen the emotional component of withdrawal

Is Heroin Withdrawal
Dangerous?

Heroin withdrawal itself is rarely directly life-threatening in
otherwise healthy adults – unlike alcohol or benzodiazepine withdrawal,
which carry a direct risk of seizure and death.

However, withdrawal carries indirect risks that make
clinical supervision important:

1. Dehydration from vomiting and diarrhoea – can cause
   dangerous electrolyte imbalances
2. Cardiovascular stress – elevated heart rate and
   blood pressure in people with pre-existing conditions
3. Aspiration risk – vomiting while unconscious or
   sedated is dangerous
4. Relapse risk – reduced tolerance after even a brief
   abstinence means that using the same dose as before can result in fatal
   overdose

This is why we strongly discourage “going cold turkey” at
home. Medical supervision is safer, more comfortable, and more
likely to result in a completed detox.

How Cherrywood
House Manages Heroin Withdrawal

At Cherrywood House, withdrawal management is approached with both
clinical precision and compassionate care. Our approach includes:

Medical Assessment on
Admission

Every client undergoes a thorough intake assessment with our clinical
team before withdrawal begins. This establishes baseline health status
and identifies any co-occurring conditions that need monitoring.

Medication Support

Where clinically indicated, medication-assisted treatment can
significantly reduce the discomfort and physical risk of withdrawal.
Options may include clonidine (reduces autonomic symptoms), anti-nausea
medications, sleep aids, and in some cases, buprenorphine or methadone
protocols.

Our clinical team determines the appropriate approach based on
individual assessment – there is no one-size-fits-all protocol.

24-Hour Monitoring

Our clinical staff are present around the clock during the withdrawal
phase. Vital signs, hydration, and wellbeing are monitored continuously.
If any complication arises, it is addressed immediately.

Emotional Support

Withdrawal is not just physical. The anxiety, despair, and
vulnerability that accompany detox are real and significant. Our team
provides consistent emotional presence throughout this phase – a
familiar face, reassurance, and genuine care.

Nutrition and Hydration

Proper nutrition and hydration during withdrawal support the body’s
recovery. Our team ensures clients are taking in adequate fluids and
manages nutrition as tolerance returns.

Transition into Treatment

Completing detox is not the end – it is the beginning. Once physical
withdrawal is complete, the therapeutic work of rehabilitation begins.
This is the phase where the root causes of addiction are explored, and
tools for lasting recovery are built.

What Happens After Detox?

At Cherrywood House, detox is followed immediately by residential
rehabilitation. We do not discharge clients post-detox – they move
directly into our evidence-based treatment programme, which
includes:

• Individual therapy (CBT, DBT, trauma-focused work)
• Group therapy
• Family therapy
• Mindfulness and wellness activities
• Aftercare planning

On completing residential treatment, our clients receive 12
months of free aftercare support – because we know that the
work of recovery continues long after leaving our facility.

FAQ: Heroin Withdrawal

How long does heroin withdrawal last? Acute heroin
withdrawal typically lasts 5-10 days. Symptoms peak at 48-72 hours.
Post-acute withdrawal symptoms (PAWS) can persist for weeks to months,
but are less physically intense.

Can you die from heroin withdrawal? Heroin
withdrawal is rarely directly fatal in otherwise healthy adults.
However, the risks of dehydration, cardiovascular strain, and relapse
(with overdose) mean medical supervision is strongly recommended.

What medications help with heroin withdrawal?
Clonidine, buprenorphine, and loperamide are commonly used to manage
heroin withdrawal symptoms. The appropriate medications depend on the
individual’s clinical picture – this is assessed on admission at
Cherrywood House.

Is it better to go cold turkey or use medication during
heroin withdrawal? Medication-assisted withdrawal is generally
safer and more comfortable than unassisted “cold turkey” withdrawal. It
does not replace the full treatment process – it is a medically managed
starting point.

How do I know if someone I love is going through heroin
withdrawal? Signs include: extreme flu-like symptoms, sweating,
vomiting, extreme irritability, muscle cramps, agitation, insomnia, and
strong drug cravings. If you suspect a loved one is withdrawing, seek
medical guidance immediately.

Does Cherrywood House offer medically supervised heroin
withdrawal? Yes. Our clinical team manages withdrawal with
medical oversight, compassionate care, and personalised protocols.
Contact us at +27 79 714 1966 to discuss your situation
confidentially.

If you or someone you love is ready to take the first step out of
heroin addiction, Cherrywood House is here. Call us at +27 79 714 1966
or email info@cherrywoodhouse.com for
a confidential discussion.