Understanding Heroin Addiction: Causes and Treatments

Introduction

Understanding heroin addiction is not as complicated as you might think.

In this blog we will explain the causes, effects and treatment options.

Addiction to heroin is a chronic problem that affects, not just the individual, but their family, friends, co-workers and peers.

It can be a relapsing disease that changes the brain leading the person to exhibit uncontrollable drug seeking behaviours even when they are acutely aware of the consequences.  

Our experienced addictions clinicians have decades of experience in assessing, diagnosing , prescribing and treating people for heroin addiction.

Let them share their knowledge with you in this blog.

What is heroin?

In short it is made from derivatives of the opium poppy plant commonly found in places such as Afghanistan.

When it is taken, the body converts it into morphine.

When first used, it will give the user an overwhelming sense of tranquility, calmness and pleasure. This leads to the person wanting more.  

Understanding heroin addiction :How is it addictive?

When heroin enters the brain, it is converted into Morphine and binds itself to opioid receptors.

These receptors control pain and pleasure responses, hence why morphine is prescribed for pain.

Norepinephrine is prevented from being released while someone has heroin (morphine) on their receptors in their brain.

When the heroin wears off on the receptors, Norepinephrine is released which is what causes the withdrawal symptoms.  

Continued use will change the structure of the persons brain chemistry meaning the more they take, the more they need to have the same effects as the small amounts they started with.  

How is heroin taken?

It can be snorted, smoked and injected: All will cross the blood/brain barrier. When injected it is often mixed with crack cocaine (snowballing) which creates further problems with infection and the comedown from crack. 

The withdrawal symptoms can be severe. Contrary to popular misconception, in severe cases, it can be fatal. 

What causes someone to become addicted to heroin?  

This is not so simple to answer. Research has yet to determine a single cause, and it is thought to be the result of a multitude of factors, working in tandem. Among these are: 

Genetic: No one starts using heroin because of their genetics but it is believed that they may increase the potential for addiction. Those who have family members with addiction issues are often more prone.  

Neurochemistry: Repeated use will, in time, change the way a person’s brain works and damage nerve cells in the brain. Thus, with the lack of neurotransmitters, more heroin is needed to bridge the communication gap.  

Environment: Class, income, status are not always relevant. The dynamic of the family, attitude of peers and friends can be instrumental in someone’s choice to use. Drugs can de-sensitize someone from the chaos around them.  

Mental health: Those with undiagnosed conditions often self-medicate with drugs.

Understanding heroin addiction: What are the signs of heroin use?  

Even for seasoned addictions professionals, the signs and symptoms are not always clear, especially if someone has recently used. They can include:  

• Low mood 

• Feelings of euphoria 

• Severe anxiety 

• Hostility towards others  

• Agitation  

• Being evasive  

• Telling lies 

• Significant weight loss 

• Bruises and/or scabs at injection sites 

• Frequent infections (injecting)  

• Poor personal hygiene 

• Delusions 

• Hallucinations 

• Paranoia 

• Having possessions of items connected with drug use (paraphernalia) This could be metal spoons, needles, shoelaces (tourniquet) and glass pipes (smoking)  

• Frequent sick absences from work/study 

• Very severe itching 

What does heroin do to someone’s health?  

The longer it is used, the higher the chance that health problems will develop, such as:  

• Kidney disease 

• Liver failure 

• HIV 

• Hepatitis  

• Recurring pneumonia 

• Reduced mental functioning 

• Sepsis 

• Shallow breathing 

• Infections 

• Increased risk of chronic illness 

• Seizures 

• Coma 

• Death 

• Seizures 

• Overdose 

• Death 

What are the signs of withdrawal?  

Among other things, the following are common in withdrawal:  

• Hyperhidrosis (Extreme sweating)  

• Severe muscle pain 

• Extreme nausea and vomiting 

• Insomnia 

• Extreme diarrhoea 

• Lacrimation (watery eyes)  

• Rhinorrhoea (severe runny nose) 

• Intense cravings 

• Criminal behaviour to fund drug purchase  

What is the treatment for heroin addiction?

There are three main treatment options for opioid use disorder:

• Methadone
• Buprenorphine
• Buvidal

Methadone:

Seen as the gold standard of treatment, Methadone is a fully synthetic opioid.

The theory is quite simple: By flooding receptors with Methadone you remove cravings and withdrawal symptoms. Then, by slowly reducing (after a period of stabilisation), together with therapy, recovery is possible.

Buprenorphine:

A more modern approach, Buprenorphine is also an opioid but works in a different way.

Unlike Methadone which floods all opioid receptors in the brain, Buprenorphine covers some.

The person, on commencing, needs to be in withdrawal as Buprenorphine binds very strongly to opioid receptors so will dislodge opioids on receptors thus leading to withdrawal.

This treatment approach can be achieved in less time than using Methadone so can be more cost effective.

Buvidal:

This is a very recent development using an injectable form of Buprenorphine.

As with the tablet form, above, the person needs to be in a degree of withdrawal, before commencing treatment. Ordinarily, someone needs to be on Buprenorphine tablets first but there are exceptions.

5 day detox:

This must never be attempted.

The concept is to sedate someone for, usually, five days while large doses of an opioid reversal agent is given (naltrexone).

Not only can this be dangerous, but it does not address craving, does not give any therapeutic input and relapse is highly likely.

Do all rehab centres offer heroin addiction treatment?

Not all rehab centres offer treatment for opioid use disorder so it may be necessary to travel a little further than you may have wanted to.

Unlike alcohol treatment, no reputable centre would admit anyone, with opioid use disorder, for less than a month though shorter admissions using oral buprenorphine may be possible.

How can Find Me a Rehab help?

Here at Find Me A Rehab we have a number of clinicians with decades of experience in assessing, diagnosing and prescribing for those caught up in heroin addiction.

If you need heroin addiction help, are looking for treatment for heroin addiction or just need heroin addiction advice, call and speak to one of our clinicians for free, independent and confidential advice.

We only signpost to legally registered centres.

Getting help

Addiction is not a choice and no one makes a conscious choice to become an addict.

Arranging professional help for heroin addiction is not something you ever thought you would need to do.

Being hesitant and nervous is to be expected.

Understanding heroin addiction is second nature to our expert addictions clinicians who can make the process straightforward.

Our clinicians can advise on any aspect of addiction, detox, rehab, home treatment, therapy, relapse preverntion and aftercare.

Call, email or live chat with one of our clinicians who can discuss treatment plans, treatment options, locations, costings, logistics and aftercare.

Understanding heroin addiction doesn’t need to be complicated.

Recent Posts

Rehab Options for International Citizens: A Guide

Rehab options for overseas citizens is a growing phenomena. The world is not as large as it used to be. You can reach Australia in a day on a single flight when it used to take days with multiple stop overs. People move and businesses migrate. The UK is home to many multinational companies Companies…

Grace Kennedy

2:03 pm, April 20, 2026

Hippy Crack Addiction: Risks, Symptoms, and Recovery Guide

Introduction Hippy crack is dangerous: Very dangerous. Nitrous oxide, laughing gas, whippets or NOS: Call it what you like. Nitrous oxide is nothing new. Originally manufactured and licensed as an anesthetic, it is now widely abused. Discarded aluminium canisters and balloons after festivals. Not the sign of harmless teenage fun. Addiction to Nitrous Oxide can…

Grace Kennedy

10:37 am, March 3, 2026

What to Expect From UK Detox Clinics

Introduction What to Expect From UK Detox Clinics? Safe, evidenced based cost effective care. UK detox clinics offer both rehabilitation and detoxification services; moreover, they do so at the same time. Detox alone will never work. Rehab consists of four essential elements: Detox, therapy, relapse prevention and aftercare. Recovery functions as a continuous cycle; removing…

Grace Kennedy

3:25 pm, February 27, 2026