Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

beginning of content

Brand name: Narcan TM

Active ingredients: naloxone

What it is used for

Narcan is indicated for the complete or partial reversal of narcotic depression, including respiratory depression, induced by opioids including natural and synthetic narcotics, propoxyphene, methadone and the narcotic antagonist analgesics: nalbuphine, pentazocine and butorphanol. Narcan is also indicated for the diagnosis of suspected acute opioid overdosage.

How to take it

The way to take this medicine is: Intramuscular. This medicine is given through a needle inserted into the muscle beneath the skin.

  • Store below 25 degrees Celsius
  • Protect from Light
  • Shelf lifetime is 3 Years.

You should seek medical advice in relation to medicines and use only as directed by a healthcare professional.

Always read the label. If symptoms persist see your healthcare professional.

Visual appearance

Clear colourless solution

Do I need a prescription?

This medicine is available from a pharmacist and requires a prescription. It is Schedule 4 : Prescription Only Medicine.

Is this medicine subsidised?

This medicine was verified as being available on the PBS (Pharmaceutical Benefits Scheme) on April 1, 2021. To learn more about this subsidy, visit the Pharmaceutical Benefits Scheme (PBS) website.

Pregnant or planning a pregnancy?

For the active ingredient naloxone

You should seek advice from your doctor or pharmacist about taking this medicine. They can help you balance the risks and the benefits of this medicine during pregnancy.

Download leaflet

For side effects, taking other medicines and more

Download consumer medicine information leaflet (pdf) from the Therapeutic Goods Administration (TGA) website

Reporting side effects

You can help ensure medicines are safe by reporting the side effects you experience.

You can report side effects to your doctor, or directly at www.tga.gov.au/reporting-problems

Back to top back to top

Need more information?

These trusted information partners have more on this topic.

Top results

Heroin - Alcohol and Drug Foundation

Heroin is part of a group of drugs known as opioids which interact with opioid receptors in the brain and can elicit feelings of pain relief, to relaxation, pleasure and contentment.

Read more on Alcohol and Drug Foundation website

Fentanyl - Alcohol and Drug Foundation

Fentanyl is part of a group of drugs known as opioids. Opioids interact with opioid receptors in the brain and elicit a range of responses within the body; from feelings of pain relief, to relaxation, pleasure and contentment.

Read more on Alcohol and Drug Foundation website

Overdose - Alcohol and Drug Foundation

An overdose happens when a toxic amount of a drug or a combination of drugs causes a severe adverse reaction. This can happen because too much is taken or because different drugs are taken at the same time. Combining drugs increases the chances of overdose.

Read more on Alcohol and Drug Foundation website

Drug overdose - Better Health Channel

Alcohol, medications, illegal drugs and some herbal remedies can all cause damage if an overdose is taken.

Read more on Better Health Channel website

Fentanyl Side Effects, Overdose and Withdrawal | Your Room

Fentanyl is a prescription drug which can come with many short and long term side effects. Find out what to do in the case of overdose or withdrawal.

Read more on NSW Health website

Heroin Effects, Addiction, Overdose and Withdrawal | Your Room

Heroin comes with many short and long term side effects. Find out what to do in the case of addiction, overdose or withdrawal and places to get help.

Read more on NSW Health website

Healthdirect 24hr 7 days a week hotline

24 hour health advice you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information and advice

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Government of South Australia, health department logo Tasmanian government logo Government of Western Australia, health department logo