Prescription medication addiction: Signs, risks, and treatment

 

Prescription medication addiction is one of the most common and least recognised forms of substance use disorder. 

Most people who become dependent on prescription drugs didn’t set out to misuse anything. The medication came from a doctor and served a real purpose. The dependence built gradually, often before the person had any sense that a problem was developing.

This article explains which pharmaceutical prescriptions carry the highest risk of addiction, how to recognise the signs, why stopping without medical supervision can be dangerous, and what treatment looks like.

What causes prescription drug abuse and addiction?

Prescription medication addiction develops through a combination of physiological, psychological, and circumstantial factors. Understanding these helps explain why some people become dependent while others taking the same medication don’t.

The most direct cause is tolerance. With regular use, the brain adapts to the presence of the medication and needs more of it to produce the same effect. This is a normal physiological response, not a character flaw, and it can develop even when medication is taken exactly as prescribed. Once tolerance is established, stopping or reducing the dose triggers withdrawal symptoms, which makes the medication feel necessary even when the original condition has resolved. 

Several factors increase the risk:

• A personal or family history of addiction
• Co-occurring mental health conditions, particularly anxiety, depression, PTSD, or chronic pain
• Long-term prescribing of medications intended for short-term use (benzodiazepines and sleeping tablets are the most common examples)
• Using medication to manage emotional distress rather than the physical condition it was prescribed for
• High levels of stress, trauma, or significant life disruption

The self-medication pattern is particularly common. Someone prescribed a benzodiazepine for anxiety finds that it also quietens grief, stress, or emotional pain. The dose gradually increases, and what began as treatment becomes dependency. This is a predictable response to a medication that acts on the brain’s reward and stress systems, not a failure of willpower.

Why prescription medication addiction is easy to miss

A prescription bottle looks different from a drug. Picking up medication from a pharmacy doesn’t carry the stigma of buying substances on the street, and the original reason for taking the medication was usually legitimate. These are the reasons prescription addiction so often goes unnoticed: by the person taking it, by their family, and sometimes by their doctor. The fact that a doctor prescribed it doesn’t protect against addiction. The prescription just changes the way addiction starts.

Commonly misused prescription medications in South Africa

Several classes of prescription medication carry a significant addiction risk. The ones most frequently seen in addiction treatment are opioid painkillers, benzodiazepines and tranquilisers, sleeping tablets, and stimulants.

Opioid painkillers: Tramadol and codeine

Tramadol is the opioid painkiller most frequently seen in addiction treatment in South Africa, largely because it’s widely prescribed and often assumed to be lower risk than stronger opioids. 

People also often misuse codeine-containing medications, including some available over the counter. Medications containing codeine include:

• Benylin 
• Actifed
• Sinutab
• Synaleve
• Compral 
• Myprodol 
• Gen-Payne 
• Stopayne
• Stilpane

Codeine is also a key ingredient in lean (also called purple drank), a drink made by mixing cough syrup with soft drinks that has become increasingly common among young people in South Africa.

Opioids work by binding to receptors in the brain and nervous system, reducing pain and producing a sense of calm and well-being. With regular use, the brain adjusts to their presence, and when they’re removed, the withdrawal is intensely uncomfortable. 

Opioid withdrawal symptoms include:

• Severe anxiety and agitation
• Muscle aches and cramps
• Sweating, chills, and goosebumps
• Nausea, vomiting, and diarrhoea
• Insomnia
• Intense cravings

Withdrawal from tramadol and other opioids is rarely life-threatening in otherwise healthy adults, but the discomfort is severe enough that most people relapse without medical support to manage it.

Benzodiazepines and tranquilisers

Benzodiazepines, commonly called “benzos” (including diazepam, lorazepam/Ativan, alprazolam/Xanax, and clonazepam), are prescribed for anxiety, panic disorder, and in some cases for sleep. 

These drugs work quickly and effectively, which is part of what makes them habit-forming. The body adapts rapidly to their presence, and tolerance can develop within weeks of regular use.

Benzodiazepine dependence is particularly serious because withdrawal from these medications can be life-threatening. Seizures and severe psychiatric disturbances are a genuine risk when stopping abruptly after prolonged use. 

This is not a medication to discontinue without medical supervision, regardless of the dose or how long the person has been taking it.

Benzodiazepine withdrawal symptoms include:

• Intense anxiety and panic
• Insomnia and restlessness
• Tremors and sweating
• Muscle cramps and nausea
• Seizures (in severe cases)
• Psychosis (in severe cases)

Sleeping tablets: Zopiclone and related medications

Prescribed for short-term insomnia, sleeping tablets such as zopiclone are frequently taken for much longer. Sleeping pills work on the same receptors in the brain as benzodiazepines, and carry a similar dependence risk. 

Tolerance soon builds, the person needs higher doses to sleep, and stopping causes a rebound of insomnia that’s often worse than the original problem. This rebound effect is one of the main reasons people find it so difficult to stop.

Sleeping tablet withdrawal symptoms include:

• Severe rebound insomnia
• Anxiety and irritability
• Sweating and tremors
• Nausea
• Seizures (in severe cases)

Stimulants: Ritalin, Vyvanse, and related medications

Stimulants such as methylphenidate (Ritalin, Concerta, and Neucon) and lisdexamfetamine (Vyvanse) are prescribed for ADHD. The drugs are misused both by people who have a prescription and those who obtain them without one. 

Among students, stimulant misuse is common as a study aid. The effects are similar to cocaine at higher doses, and regular misuse can lead to dependence, cardiovascular strain, and significant psychiatric symptoms, including paranoia and psychosis.

Stimulant withdrawal symptoms include:

• Extreme fatigue and exhaustion
• Depression, sometimes severe
• Increased sleep and appetite
• Difficulty concentrating
• Strong cravings

Signs of prescription medication addiction

Across all types of prescription medication, certain behavioural patterns are consistent warning signs:

• Requesting refills earlier than expected or losing prescriptions frequently
• Visiting multiple doctors to obtain additional prescriptions (doctor shopping)
• Taking significantly more than the prescribed dose
• Taking someone else’s prescribed medication
• Hiding or lying about how much medication is being taken
• Continuing to take the medication long after the original condition has resolved
• Feeling unable to function normally without it
• Ordering medication online without a prescription
• Experiencing withdrawal symptoms when the medication isn’t available

These behaviours are signs that the brain’s chemistry has been altered by the medication, and is now driving behaviour in ways the person often struggles to control.

Why stopping prescription medication without medical supervision can be dangerous

With some prescription medications, stopping abruptly is medically dangerous, not just uncomfortable.

Benzodiazepine and sleeping pill withdrawal carries a real risk of seizures, psychosis, and dangerous changes in heart rate and blood pressure. The risk increases with higher doses and longer duration of use. Any attempt to stop these medications should involve a medically supervised tapering programme, not a sudden withdrawal.

Opioid withdrawal is physically severe, and the intensity of the discomfort is one of the strongest drivers of relapse. Medical supervision allows withdrawal to be managed with appropriate medication, significantly improving the chances of completing detox.

Stimulant withdrawal is less physically dangerous but often involves a severe depressive crash that carries its own risks.

For all of these, attempting to stop alone or following a GP’s tapering plan without additional support often isn’t enough. The psychological pull of the addiction remains even once the physical withdrawal has passed, and this is where structured residential or outpatient treatment becomes important.

Treatment for prescription medication addiction at Houghton House

Because Houghton House is a fully licensed psychiatric hospital, patients receive full medical supervision from the first day of admission. 

The medical detox unit provides 24-hour nursing care, daily doctor visits, and individually tailored medication to manage withdrawal safely and as comfortably as possible.

Most prescription medication addictions also involve underlying mental health conditions that either triggered the original prescription or developed alongside the addiction. Anxiety, depression, insomnia, and PTSD are all common. 

Treating the addiction without addressing the underlying condition produces short-lived results, which is why the clinical drug rehab programme at Houghton House assesses and treats both simultaneously.

Treatment typically includes:

• Medically supervised detox with 24-hour monitoring
• Psychiatric assessment and ongoing psychiatric care
• Cognitive behavioural therapy (CBT) for the thinking patterns that maintain drug-seeking behaviour
• Dialectical behaviour therapy (DBT) for emotional regulation and distress tolerance
• Individual and group therapy
• Family support sessions
• Relapse prevention planning
• Aftercare and outpatient treatment

Frequently asked questions about prescription drug addiction

Is prescription medication addiction treated differently from drug addiction?

The core treatment principles are the same: medically supervised detox followed by structured therapy. The clinical team adjusts the approach depending on the specific medication involved. 

Benzodiazepine and opioid dependence both require careful medical management of withdrawal that differs from alcohol or stimulant dependence. The underlying reasons for the addiction also tend to differ, and treatment needs to address those.

I was given this medication by my doctor. Does that mean I’m not really addicted?

A legitimate prescription doesn’t prevent dependence from developing. Many people become dependent on medication that was prescribed appropriately and taken as directed. The origin of the prescription doesn’t change what’s happening in the brain, and it doesn’t affect the need for treatment.

Can I taper off benzodiazepines or sleeping tablets on my own?

Tapering should always be done under medical supervision. Stopping benzodiazepines or zopiclone abruptly, or too quickly, carries a genuine risk of seizures and serious psychiatric complications. A supervised tapering programme within a medical setting is significantly safer than attempting it alone. 

Does medical aid cover prescription medication addiction treatment?

Yes. Substance use disorders are Prescribed Minimum Benefits (PMBs), so all registered medical aid plans are required to cover addiction treatment. Because Houghton House is a fully licensed psychiatric hospital, patients can also claim for psychiatric services beyond the standard PMB, where co-occurring conditions qualify under psychiatric PMBs. Contact our admissions team to find out exactly what your plan covers.

Get help for prescription medication addiction

If something in this article has felt uncomfortably familiar, it’s worth paying attention. Whether you’re worried about your own use of prescription medication or trying to help someone close to you, our team can help you make sense of what’s happening and what to do next. 

Houghton House has the medical and psychiatric staff to manage withdrawal safely from day one, including the complex cases that need more than a standard tapering plan. Reach out for a confidential conversation whenever you’re ready. There’s no obligation, and no prior referral is needed.

Call us today at +27 11 787 9142, or fill in our contact form.