Concerned about your own or
someone else’s drug use?


Guidance notes for Consumers, Friends and Families

About Carfentanil

Carfentanil is a highly toxic and potentially lethal synthetic opioid. Very small quantities result in poisoning, including among people who are opioid tolerant. It is a different and more toxic drug than fentanyl.

Carfentanil has been imported into Australia in powdered and tablet form; it can also come in other forms such as patches and sprays. It can be diluted and sold as heroin or synthetic heroin or in tablets as oxycodone. It can be accidentally absorbed through the skin or inhaled.

The US Government Drug Enforcement Administration released a worldwide warning in 2016 on Carfentanil in view of an increasing number of deaths from Carfentanil overdoses in the USA1. Carfentanil was first detected in Australia in 2016.

Understanding the common risks with any drug taking, following harm reduction measures and knowing how to respond to an opioid overdose can reduce risk and save lives.

Opioid Overdose First Aid

If you think someone is overdosing, act fast. Don’t wait to see if they will recover.

1. Call an ambulance 000.

    Tell the operator that you believe the person is having a drug overdose. If possible, tell them what drug they have taken.

2. Put in recovery position (lying down on their side with their head resting on their arm).

recovery position

3. Give one 400mcg dose of naloxone.

4. If the person isn’t breathing, then turn on back and give rescue breaths.

5. If no response, continue to administer doses every 2-3 minutes, some people might require all 5 doses.

6. Stay with the person until the ambulance comes and inform the paramedics how much naloxone has been given. It is important that the person gets medical attention in hospital. They may need observation for at least 4 hours – sometimes effects can delayed.

7. If possible, give the paramedics a sample of the substance.

Take Home Naloxone

During an opioid overdose, the central nervous system slows down, and can stop a person from breathing. Naloxone is a short-acting drug that can temporarily reverse the effect of an opioid overdose, and give that person the ability to breathe again.


Naloxone is currently available nationally as a nasal spray or in a pre-filled syringe. In all states, Nyxoid® nasal spray and Prenoxad® pre-filled syringes are available over the counter from a pharmacy. With some basic training, it can be administered by anyone.


In NSW, WA and SA, the ‘Take Home Naloxone’ pilot offers Naloxone free of charge from community and hospital-based pharmacies, alcohol and drug treatment centres, needle and syringe programs, custodial release programs and GP clinics. Visit the Take Home Naloxone page for further details: http://www.health.gov.au/initiatives-and-programs/take-home-naloxone/


Take Home Naloxone is available for free in ACT, QLD, NT and VIC to opioid users, their friends and families through a number of services. Contact details for these areas are available on our website: http://www.nccred.org.au/naloxone

Harm Reduction

  • Be aware that drug supplies change frequently, and no-one knows the exact content
  • Always test a small amount of any new substance
  • Try not to ever use alone, so if something goes wrong there is someone to get help
  • Have naloxone and know how to use it
  • Know the signs of overdose like falling unconscious, slow/shallow/no breathing, deep snorting, blue lips
  • Know how to intervene and save a life

Advice & Treatment

Getting into drug treatment can reduce the risk of dying from an overdose. Call the National Alcohol and other Drug Information Service (ADIS) on 1800 250 015.

You will be automatically directed to the ADIS State or Territory you are calling from.

Need Help? Call ADIS on:

1800 250 015

Further Information & Resources


  1. Chodoff P, Domino EF. Comparative pharmacology of drugs used in neuroleptanalgesia. Anesthesia and Analgesia, 44(5) (1965) pp.558-563