Detox Medication for Drug and Alcohol Withdrawal: How Medical Care Improves Recovery Outcomes
Can medication, combined with therapy and psychosocial support, improve safety and long term recovery outcomes for people with substance use disorder?
Detox medication manages the physical withdrawal process so that stopping a substance does not become a medical emergency. The specific medication used depends on the substance. Alcohol withdrawal requires different medication from opioid withdrawal. GHB detox is different again. This article breaks down which medications are used for which drug, why they are prescribed, and what supervised medical detox at Changes Rehab in Johannesburg involves.
Call 081-444-7000 to speak to our admissions team about medical detox options.
What Detox Medication Is Used For
Detox medication has a specific clinical job. It is not a cure for addiction and it does not replace therapy. Its role is to make withdrawal safe and manageable so that the patient can get through the highest-risk window and into treatment.
Detox medication does three things depending on the substance and the patient:
- Prevents life-threatening withdrawal complications such as seizures and delirium tremens
- Reduces the severity of withdrawal symptoms including anxiety, sweating, insomnia and cravings
- Keeps the patient stable long enough to engage with the therapy and counselling that address the addiction itself
Around 50% of people with alcohol dependence experience withdrawal symptoms when they stop drinking. Of those, 4% develop severe symptoms, and without proper medical supervision up to 15% of severe cases are fatal. This is why detox medication is prescribed by a doctor and administered under 24-hour clinical supervision, not managed at home. Read more on the risks of quitting cold turkey without medical supervision.
At Changes Rehab, every patient is assessed by an addiction psychiatrist and medical doctors on admission. Medication is prescribed on admission, reviewed daily during detox, and adjusted as withdrawal progresses. Nursing staff are on site 24 hours a day. Read about the Changes primary addiction treatment process.
| Substance | Primary Detox Medication | Post-Detox Medication |
|---|---|---|
| Alcohol | Benzodiazepines, baclofen | Naltrexone, acamprosate, disulfiram |
| Opioids (heroin, codeine) | Clonidine, methadone, buprenorphine | Naltrexone |
| GHB | Benzodiazepines, baclofen | Clinically determined |
| Cannabis | Symptomatic (sleep aids, anti-anxiety) | Behavioural therapy |
| Cocaine / Tik / Meth | NAC, antidepressants (adjunctive) | Therapy-led |
Alcohol Detox Medication
Alcohol withdrawal is one of the most medically dangerous withdrawal syndromes. The peak risk window is the 24 to 72 hours after the last drink, during which untreated withdrawal can cause seizures, delirium tremens, and cardiac events. See symptoms of alcohol withdrawal for a full breakdown of what the withdrawal timeline looks like.
Benzodiazepines (Librium, Valium, Ativan)
Benzodiazepines are the primary medication used for alcohol detox. They reduce anxiety and agitation, prevent seizures, and manage the neurological hyperactivity that causes delirium tremens. Commonly used benzodiazepines include chlordiazepoxide (Librium), diazepam (Valium), and lorazepam (Ativan).
Short-term benzodiazepine use in alcohol detox is clinically necessary, not optional. Without it, severe alcohol withdrawal carries a significant risk of death. Patients who are also dependent on benzodiazepines are tapered gradually rather than stopped abruptly, since benzodiazepine withdrawal can itself be life-threatening.
Baclofen
Baclofen is a muscle relaxant used in alcohol and GHB withdrawal. It reduces withdrawal symptoms and helps prevent seizures, particularly in patients who cannot tolerate benzodiazepines or whose medical history makes benzodiazepine prescribing risky.
Naltrexone, Acamprosate, and Disulfiram (post-detox)
These three medications are not used during detox itself. They are prescribed after the acute withdrawal phase to support ongoing abstinence.
Naltrexone blocks the brain receptors responsible for alcohol’s pleasurable effects. A patient who drinks while on naltrexone gets little reward from it. It is available as a daily tablet or a monthly injection.
Acamprosate reduces the anxiety and low mood that persist after alcohol detox. These symptoms are a primary driver of relapse in early recovery. Acamprosate is started once detox is complete.
Disulfiram (Antabuse) causes an immediate, severe physical reaction if alcohol is consumed: nausea, vomiting, flushing, and rapid heart rate. It works as a deterrent and is most effective in highly motivated patients with strong external supervision.
Opioid Detox Medication
Opioids include heroin, morphine, codeine, and prescription painkillers such as oxycodone and tramadol. Opioid withdrawal is rarely fatal but is intensely uncomfortable: muscle aches, sweating, agitation, insomnia, vomiting, and severe cravings that peak around 48 to 72 hours after the last dose and can last up to a week. See the Changes guide to heroin addiction for more on how opioid dependence develops.
Clonidine
Clonidine is a blood pressure medication used off-label for opioid withdrawal. It targets the autonomic symptoms that make opioid detox feel intolerable: raised heart rate, sweating, agitation, cramps, and anxiety. It does not manage cravings but significantly reduces the physical distress that causes patients to leave treatment early.
Methadone (Opioid Substitution)
Methadone is a synthetic long-acting opioid used in opioid substitution therapy. It binds to the same brain receptors as heroin and morphine, but activates them more slowly and steadily, which means it relieves cravings and withdrawal without producing a euphoric high in someone with established opioid tolerance.
Methadone is not stopped abruptly. It must be tapered under medical supervision. Methadone programmes are tightly regulated in South Africa and require specialist prescribing. Methadone is typically used in longer-term opioid treatment programmes rather than short-term private inpatient detox.
Buprenorphine / Suboxone
Buprenorphine (sold as Suboxone in combination with naloxone) is a partial opioid agonist. It activates the opioid receptors less strongly than heroin or methadone, relieving cravings and withdrawal without the same level of euphoria. The naloxone component acts as an abuse deterrent: it remains inactive when Suboxone is taken as prescribed but triggers immediate withdrawal if injected. Like methadone, Suboxone must be tapered rather than stopped abruptly.
Naltrexone (Opioid Blocking)
Naltrexone for opioid addiction is a full opioid antagonist. It blocks the opioid receptors completely, so a patient who uses opioids while on naltrexone gets no euphoric or pain-relieving effect. It reduces cravings and is not itself addictive.
Naltrexone cannot be started during opioid withdrawal. It must only be used after opioid detox is complete, because starting it too early triggers severe precipitated withdrawal. It works best in motivated patients who have already stabilised.
GHB Detox Medication
GHB withdrawal is one of the most acute and dangerous withdrawal syndromes. Symptoms can begin within hours of the last dose and include severe anxiety, tremors, sweating, psychosis, and seizures. GHB withdrawal can be fatal without medical management. See what is GHB for background on the substance and its effects.
Medication for GHB detox typically includes benzodiazepines to manage seizure risk and acute agitation, and baclofen, which acts on the GABA receptor system that GHB targets. The taper must be carefully managed by a doctor. At Changes, GHB detox is managed by the medical team and nursing staff throughout.
Cannabis Detox Medication
There is no approved pharmacological treatment for cannabis withdrawal. The withdrawal syndrome, while not medically dangerous, produces insomnia, irritability, anxiety, reduced appetite, and cravings that peak around days 2 to 3 after stopping. See cannabis addiction for more on dependence and treatment.
Medication used during cannabis detox is symptomatic: sleep aids for insomnia, and anti-anxiety medication for severe agitation, managed carefully because of dependence risk. The primary treatment for cannabis dependence is therapy and behavioural intervention, not pharmacotherapy.
Stimulant Detox Medication: Cocaine, Methamphetamine, Tik
There is no approved pharmacological treatment for cocaine or methamphetamine withdrawal. Stimulant withdrawal does not carry the seizure or cardiac risk of alcohol or GHB withdrawal, but it produces severe psychological symptoms: profound depression, exhaustion, and intense cravings that make early abstinence very difficult.
NAC (N-acetylcysteine) is an antioxidant used as an adjunctive treatment during stimulant withdrawal. It is not formally approved for this purpose but has growing evidence for reducing cravings across several drug classes. It is inexpensive and carries minimal side effects, which is why it is increasingly used during detox and as longer-term relapse-prevention support.
Antidepressants may also be prescribed during stimulant withdrawal where the post-use depression is severe or where an underlying depressive disorder is identified. The decision is clinical and made on a case-by-case basis.
Medication for Co-occurring Mental Health Conditions
More than half of patients entering Changes for addiction treatment have an underlying psychiatric condition that needs to be treated alongside the addiction. Treating only the addiction while leaving the mental health condition untreated is the most reliable way to produce relapse. Read more on dual diagnosis treatment at Changes.
Psychiatric medications used during addiction treatment include:
- Antidepressants for depression and anxiety that persist beyond acute withdrawal
- Mood stabilisers for bipolar disorder
- Antipsychotics for psychotic features or severe agitation during withdrawal
- Sleep aids for persistent insomnia
The specific prescription depends on the diagnosis. At Changes, every client is assessed on admission by an addiction psychiatrist and a medical doctor. Both conditions are managed by the same multidisciplinary team throughout treatment.
Medical Supervision at Changes Rehab Johannesburg
Detox medication works only when it is correctly assessed, prescribed, and monitored. The medications used in detox are powerful. Without 24-hour clinical oversight, the risks are real: drug interactions, missed diagnoses, and patients leaving treatment because withdrawal was not properly managed.
Changes Addiction Rehab runs medical detox and primary care from a 16-bed facility in Northcliff, Johannesburg, with 24-hour nursing cover, a doctor on call, and an addiction psychiatrist on the clinical team. Medication decisions are made on admission and reviewed daily as the patient moves through detox.
For an obligation-free assessment, contact the Changes admissions team. A short conversation will clarify which substances are involved, what medical supervision is appropriate, and how medical aid coverage works for your situation.
Call 081-444-7000 or contact us online.
What detox medication is used for alcohol, opioid and drug withdrawal? Changes Rehab explains the medications used in supervised medical detox in Johannesburg.. Changes team counsellors are here to help you.Drug & Alcohol Withdrawal: Detox Medication | Changes Rehab
