Alcohol | NHMRC

Drug and alcohol misuse is when drug and alcohol use becomes a problem. Misuse can involve:
Drug or alcohol use can become a problem when it starts to affect a person's:
Drug and alcohol misuse is common. Around 1 in 3 adults in Australia drink alcohol at risky levels and roughly 2 in 5 people in Australia have used an illegal drug at some point in their lives.
Drugs are substances that affect how the body or brain functions. Illegal drugs such as cocaine and heroin can be harmful.
Unlike prescription medicines, there is no government organisation that regulates the strength or amount of active ingredients in illegal drugs. This means that someone using an illegal drug can't know how strong the drug is or what is actually in it.
Alcohol is a legal drug that can be harmful if taken in large amounts or for a long time. It affects people in different ways depending on how much they drink and what medications they are on.
Medicines that have been prescribed by a doctor can also be harmful if they aren't taken as directed or are taken for non-medical reasons.
It can be difficult to tell if a person is misusing drugs or alcohol, especially if they're trying to hide their drug or alcohol use.
Some drugs can cause noticeable physical symptoms such as:
A person may be misusing drugs or alcohol if their use leads to:
Drugs or alcohol use may be a problem if someone:
These signs aren't always related to drug use. This is especially true if for young people who may be coping with the challenges of adolescence.
If you aren't sure whether a person is misusing drugs or alcohol, or needs help for another problem, start a conversation to see if they're OK.
Here are some tips to start a conversation with someone about their drug and alcohol use.
Prepare for the chat:
Having the conversation:
The person may not agree that their alcohol or drug use is a problem and might become defensive or angry. If this happens, it doesn't mean that you have failed — the person may just need more time to think about what you discussed.
When speaking with someone about their drug or alcohol use try to avoid:
When speaking to someone about their drug use, listen respectfully to their views and respond calmly. The tone and the type of language you use is important and can influence how the person responds to your concerns.
There are many services available to help people who are struggling with drug or alcohol misuse. If the person is interested in professional help, you can help them find a local drug and alcohol treatment service.
Here are some tips to help support someone with a drug or alcohol problem:
Drug and alcohol treatment and recovery will take time. Many people don't succeed the first time they try to quit.
If you're concerned that the person may overdose on an opioid, consider naloxone (a medicine that can temporarily reverse the effects of an opioid overdose). You can access naloxone for free and without a prescription through the Australian Government's Take Home Naloxone program (Opens in new tab).
Ultimately, it's the person's decision whether to seek professional help. It's common that people go through cycles of stopping and restarting use of drugs and alcohol.
Here are some tips if the person doesn't want help to reduce their drug or alcohol use right now:
Find a needle and syringe program in your state or territory.
Supporting a friend or family member with a drug or alcohol misuse problem can be difficult.
Here are some tips to help you look after yourself:
If someone has taken drugs or alcohol and may cause harm to themselves or others, or is very unwell, call triple zero (000) and ask for an ambulance.
You should see a doctor if you feel that you have a problem with drugs or alcohol. Getting help is an important first step to making a change.
Get urgent medical help for someone who seems dangerously affected by drugs or alcohol. Signs that someone may be dangerously affected by drugs or alcohol include:
You might also notice that the person has:
It's important to seek immediate medical attention even if you're worried the person might get into trouble for taking illegal drugs.
Paramedics will notify police if there is a risk to their own safety, the person's own safety or the safety of others. Paramedics will also notify a person's parent or guardian if they are under 18 years of age and are taken to hospital.
If a person becomes aggressive or violent after consuming drugs or alcohol, and your own safety is at risk, don't stay with them. You can still help the person by calling triple zero (000) once you're in a safe place.
The Australian Government (Opens in new tab) offers:
Al-Anon Family Groups Australia (Opens in new tab) offers support to the family and friends of someone struggling with alcohol (Opens in new tab).
Self-Help Addiction Resource Centre (Opens in new tab) (SHARC) provides professional help and practical support to people who are looking after a family member living with addiction.
Counselling Online (Opens in new tab) is a free, text-based counselling service for people seeking help for their own or a family member s drug use (Opens in new tab).
Drug Info (Opens in new tab) provides information about alcohol and other drugs.
Family Drug Support (Opens in new tab) offers information and support to the families of people struggling with drugs and alcohol — for a 24-hour support hotline call 1300 368 186.
ReachOut (Opens in new tab) provides information, support and advice to young people.
Lifeline (Opens in new tab) provides 24-hour phone and online counselling and support. Call them on 13 11 14.
Positive Choices (Opens in new tab)has information and resources for people from culturally and linguistically diverse backgrounds (Opens in new tab).
The Your Room (Opens in new tab) page has information about treatment for drug use in multiple languages (Opens in new tab).
Positive Choices (Opens in new tab)has information and resources for Aboriginal and Torres Strait Islander people and communities (Opens in new tab).
The Alcohol and Drug Foundation has resources and drug facts for Aboriginal and Torres Strait Islander people (Opens in new tab).
You can also call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available to speak with you 24 hours a day, 7 days a week.
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Last reviewed: December 2025










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