Codeine addiction | signs, risks and rehab

Codeine addiction often develops gradually, over weeks or months of regular use. Because codeine is widely prescribed for pain relief and is sometimes found in cough medicines, many people assume it is a relatively harmless medication. However, codeine is an opioid, and long-term use or misuse can lead to both physical and psychological dependence. Whether it is taken for pain, a persistent cough or its calming effect, codeine can slowly become something the body and mind rely on.

Codeine is an opioid medication that doctors commonly prescribe for mild to moderate pain, for example after an injury or operation. It is also an ingredient in some cough medicines because it helps reduce the urge to cough. Many of these medicines combine codeine with paracetamol or ibuprofen.

How codeine works in the body

Once codeine enters the body, the liver converts it into morphine. This is how it produces its pain-relieving effects, but it also explains why codeine has the potential to become addictive. How quickly the liver does this varies from person to person. On the same dose, one person may feel little pain relief while another feels a much stronger effect. Although effective when used appropriately, codeine is generally intended for short-term use because the risk of dependence and addiction increases with prolonged use.

In the UK, you can buy low-dose codeine from a pharmacy without a prescription when it is combined with another painkiller, such as paracetamol or ibuprofen. Each tablet contains up to 12.8 mg of codeine, a pack holds no more than 32 tablets and you have to ask the pharmacist for them. The packaging states that the medicine can cause addiction and is for 3 days' use only. Because these medicines are so easy to get, many people do not regard them as drugs at all. Codeine cough syrup has only been available on prescription in the UK since 2024, partly because people were mixing it with fizzy drinks to get high. 

In many other European countries, such as France, Germany and the Netherlands, all codeine requires a prescription. In the United States, codeine tablets are prescription-only, although some states allow pharmacists to sell low-dose codeine cough syrup without a prescription.

Most codeine sold over the counter is combined with paracetamol or ibuprofen. Taking more tablets to feel the effect of the codeine also means taking more of the other painkiller, which puts extra strain on your body.

Codeine belongs to the opioid family, meaning it affects the brain's reward system in much the same way as other opioid medications. This is why codeine dependence follows the same pattern as other forms of opioid addiction. As your body adapts to codeine, you may find that the original dose becomes less effective. This process, known as tolerance, can lead you to take larger amounts or use the medication for longer than originally intended. Over time, codeine may become something you rely on not only for pain relief but also to feel relaxed, comfortable or emotionally balanced. This gradual change is how codeine addiction often develops. Like any other addiction, it is a chronic brain condition, so stopping usually takes more than willpower.

Risk factors for codeine addiction

Several factors may increase the risk of dependence, including:

• prolonged use
• taking higher doses than prescribed
• previous drug addiction or alcohol addiction
• anxiety or depression
• chronic pain
• emotional distress
• combining codeine with alcohol or other substances

Although these factors increase the likelihood of addiction, dependence can develop in anyone who uses opioids over an extended period.

Recognising codeine addiction symptoms early can make it easier to seek help before dependence becomes more severe.

Common symptoms of codeine addiction include:

• taking codeine more frequently than prescribed
• needing larger doses to achieve the same effect
• unsuccessful attempts to reduce your use
• constantly thinking about your next dose
• continuing despite negative consequences
• relying on codeine to cope with everyday life
• neglecting work, relationships or responsibilities
• becoming anxious when your medication is running low

You may also notice that you have started organising your daily routine around taking codeine, even though the original medical reason has gone.

While symptoms describe what you experience, signs of codeine addiction are often the changes that become noticeable to you or those around you.

Common codeine addiction signs include:

• frequent requests for repeat prescriptions
• visiting different doctors for medication
• buying codeine products from several different pharmacies
• withdrawing from family or friends
• changes in mood or motivation
• reduced performance at work or school
• increasing secrecy around medication use
• loss of interest in hobbies and activities

Recognising these behavioural changes early provides an opportunity to seek help before the addiction progresses further.

Over time, codeine addiction side effects can affect both physical health and emotional wellbeing.

Possible long-term effects include:

• persistent constipation
• drowsiness
• reduced concentration
• memory problems
• hormonal changes
• anxiety
• depression
• relationship difficulties
• reduced quality of life

As dependence becomes more severe, obtaining and using codeine often becomes the central focus of daily life.

Codeine slows down breathing. Alcohol, sleeping tablets and benzodiazepines have the same effect, and when they are taken together, the effect is stronger. This combination increases the risk of an overdose, in which breathing becomes dangerously slow or stops altogether. This can be fatal.

If you are dependent on codeine and stop or cut down suddenly, withdrawal symptoms usually begin within a day. They include restlessness, sweating, muscle aches, stomach cramps, diarrhoea, a runny nose, difficulty sleeping and strong cravings. The physical symptoms are usually at their worst after 2 to 3 days and ease within about a week, while low mood and cravings can last longer. Codeine withdrawal is rarely life-threatening, but it is often when you are most likely to start taking codeine again. During a detox, our team, including addiction doctors, is there for you around the clock.

Codeine addiction treatment can be effective when it addresses both the dependence itself and the reasons codeine use continued beyond its original purpose. At Connection Mental Healthcare, our rehabilitation programme is tailored to your individual circumstances. Rather than focusing solely on the medication, we help you understand the emotional, behavioural and psychological factors that contribute to your dependence. We know that addiction to prescription medication often comes with feelings of guilt, confusion or frustration.

What your treatment includes

Our programme includes a comprehensive assessment and medical supervision during your stay. If you have a dual diagnosis, meaning you have both an addiction and a mental health condition such as anxiety or depression, we treat them together.The programme also includes group therapy, individual sessions, relapse prevention and aftercare planning.

During codeine rehab, you stay at our rehabilitation centre in South Africa, away from the pharmacies and daily routines that kept your use going. Rehab for codeine addiction starts once the codeine is out of your system. Whether you need a detox first is something we look at during your assessment. In therapy, you look at why codeine became your way of coping and learn other ways to deal with stress and difficult emotions.

Codeine rehabilitation and chronic pain

If you live with chronic pain, codeine rehabilitation also takes that pain into account. When you stop taking codeine, the original pain may return, so we address the pain and your addiction to codeine together. Our multidisciplinary team provides evidence-based psychological treatment and medical supervision throughout your stay.

With the right treatment, codeine addiction recovery is entirely possible. Recovery involves much more than stopping the medication. It is about understanding the reasons behind your dependence, developing healthier coping strategies and rebuilding confidence in your ability to manage life without relying on codeine.

Recovery after rehab

Recovery continues after you leave codeine addiction rehab. Our family programme involves the people close to you, so that they understand what has changed and how they can help. We can also put you in touch with peer groups such as Narcotics Anonymous.

Seeking codeine addiction help early often leads to a smoother recovery. If several of the symptoms or signs above apply to you, an addiction assessment can show how far your dependence has progressed and which treatment is right for you. Recognising these patterns gives you the chance to take back control before the addiction becomes more severe.

If you are looking for codeine addiction help, have questions about codeine addiction treatment or are worried about a loved one, call Connection Mental Healthcare today on +27 21 541 0643. Taking the first step towards recovery from your codeine addiction could be the beginning of a healthier future.