Addiction Treatment by Substance

Why substance matters

The same treatment formats — detox, residential rehab, outpatient, counselling — are used across substances, but the substance still matters. Withdrawal severity is different. Medical risk is different. The medications used in detox are different. The therapeutic approaches that work best vary. And the practical patterns of dependence — how quickly tolerance builds, how relapse risk evolves, what recovery looks like at six and twelve months — differ enough that having a substance-specific guide is genuinely useful.

Alcohol remains the most-treated substance at Australian AOD services — about 39 percent of treatment episodes. Amphetamines (predominantly methamphetamine) account for about 27 percent, cannabis around 15 percent, opioids about 7 percent, and cocaine about 4 percent. Roughly one in five people in treatment for any of these has a co-occurring gambling problem; many have multiple substances of concern at once. The guides below treat each substance independently, but recognise that real life rarely fits neatly into a single category.

Each guide is built to be read by an adult — not by a marketing team or a search engine. Plain language, no scare tactics, no breathless promises. If you are reading on behalf of someone you love, the guides work for that too: most of the practical advice is the same whether you are the person with the dependence or the person standing next to them.

A few patterns worth knowing

Most people in treatment have more than one issue

Australian comorbidity research consistently finds that the majority of people in AOD treatment have at least one co-occurring mental health condition — anxiety in roughly 64 percent, depression in around 58 percent, post-traumatic stress in nearly half, ADHD (diagnosed or suspected) in around a third. Good treatment recognises this. Programs that treat addiction in isolation from the conditions around it tend to produce shorter-term gains; programs that treat the whole person produce longer-term recovery.

Polysubstance use is common

Many people present with one principal drug of concern and several secondary substances — alcohol plus benzodiazepines, ice plus alcohol, opioids plus benzodiazepines. The principal drug is usually the focus of treatment, but the others are tracked and managed. Do not simplify the picture when you are describing your situation; clinicians are trained to handle complexity.

Crisis nuances differ

Some substances have specific crisis patterns worth knowing about. Severe alcohol withdrawal can cause seizures and delirium tremens — never quit cold-turkey from heavy daily drinking without medical supervision. Methamphetamine-induced psychosis is a medical emergency. Opioid overdose is reversible with naloxone (available without prescription in most pharmacies) but only if someone is there to give it. Each substance guide includes a crisis note for the patterns specific to that drug — read them.