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Nitrous Oxide Laughing Gas

What is Nitrous Oxide?

Nitrous Oxide is a gas that when inhaled causes quick and short lasting effects. It can cause an instant ‘rush’ for people who consume. When used in extra risky ways, used in large doses or used frequently over time it can cause harms to health.

It has a number of industrial uses and is used clinically. When mixed with air (50/50 gas and air) it is used as an anaesthetic gas for pain-relief in dentistry and child birth.

Nitrous Oxide is often categorised as a ‘depressant’, ‘dissociative’ or ‘inhalant’ type drug because of its effects and how it is inhaled. A depressant drug is one that slows the body down. A dissociative drug has effects which causes disconnect or detachment from oneself or reality.

It is known by people who use it as ‘Laughing Gas’, ‘Whippets’, ‘Chargers’ ‘N20’, ‘Nos’ and ‘Balloons’. Media reports have also termed this substance as ‘Hippy Crack’.It may be commonly confused with CO2 which comes in similar silver canisters used to inflate bike tyres. Because they are both gases used to fill balloons, Nitrous Oxide could also be confused with helium. The two gases are not related.


It is a colourless gas that some say is slightly sweet smelling and tasting. It can be found in different forms such as in whipped cream chargers ‘whippets’ which are small silver cartridges. It can also come as crackers with balloons attached or in large canisters which are different colours that are used to fill balloons.

How is it taken?

It is inhaled from a balloon which has been filled with the gas, sometimes referred to as ‘nagging’.

The gas needs to be discharged from the canister (large and small) to another object such as a balloon.

To release the gas from ‘whippets’ canisters, they need to be fitted into a whipped cream canister or an object known as a ‘cracker’. Larger Nitrous Oxide containers are also used to release gas directly into a balloon.

Why do people use Nitrous Oxide?

People may choose to use this substance for its quick euphoric effects.

What are the effects?

There are always risks with drugs, it is safer not to use.

It is important to note that each person will react differently to a substance, including Nitrous Oxide. Effects can be based on a number of factors depending on; how much is taken and the dose which sometimes can be unknown, personal factors such as the persons mental health, if the person has consumed the substance before and if other drugs, alcohol or prescription medication are used at the same time and the setting it is used in.

Effects start almost immediately peaking at about 10-30 seconds after use, but the effects are short lived meaning they don't last long.

Effects can include:

Unwanted effects can include:

Long term effects

What are the risks?

Further research is needed in relation to the short and long term risks. We know that risks are increased based on the below factors:

  1. How it is taken
  2. How much is taken
  3. How often it is taken

Taking Nitrous Oxide directly from the canister without a balloon can increase harms

It is dangerous to inhale Nitrous Oxide directly from a canister. Inhaling directly from a canister can cause frost bite to the mouth and nose as well as cause damage the throat and lungs which can be risky. Gas within the canisters is extremely cold and needs to be warmed before inhaling.

Some people may be at greater risk to unwanted effects and becoming unwell

People with heart, blood pressure or mental health concerns could be at greater risk. Nitrous Oxide can cause a drop in oxygen levels which could increase heart rate.

The setting

People risk falling or accidents after use, risks are increased if used in roadways or water.

The environment

Nitrous Oxide related litter is a concern in some areas.

Mixing drugs increases risk

Using Nitrous Oxide with other drugs increases the risks, including using with alcohol or prescription medication. It is possible that Nitrous Oxide taken at the same time as stimulants has a greater effect on blood pressure and heart rate.

Long term risks to health

Long terms and heavy use is associated with causing vitamin B12 deficiency.  Vitamin B12 deficiency can cause nerve damage, pain/tingling in toes and fingers and changes to skin pigment.

Suffocation or lack of air

Suffocation can happen when taking Nitrous Oxide. People risk being deprived of oxygen if too much nitrous oxide is inhaled or if a person uses continuously without taking breaths. Internationally there are some reports of people experiencing suffocation or lack of oxygen.

Quality of products

As with all products, the quality and purity could vary depending on the source. There is concern that people could confuse nitrous oxide with other gases or be sold poor quality products which could cause harm to health.


Nitrous oxide is could be used in a compulsive way. However, there are no significant withdrawal symptoms known at present other than the desire to use more nitrous oxide.


Currently there are no reports of nitrous oxide dependence in the literature. There is anecdotal evidence of psychological dependence.

We continue to monitor this substance and the known risks.

Educating young people

Parents play an important role in educating young people of the risks asscociated with drug and alcohol use. To help parents discuss substance use, the HSE produced a booklet to help guide the conversation.

Nitrous Oxide Factsheets 

Download our information factsheets for concerned parents and people who use drugs here. 

Harm Reduction Information 

Get harm reduction for people who use Nitrous Oxide here

HSE warning to young people in January 2020

HSE warns young people of dangers of laughing gas

‘It can cause death by suffocation’ — HSE warn young people against using ‘hippy crack’

HSE warns festival-goers about dangers of 'laughing gas

Festival-goers 'risk death' by using laughing gas, warns HSE

HSE warns that inhaling laughing gas recreationally is 'an emerging issue among Irish festival-goers'

Additional Resources

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Posted by on 06/03 at 09:59 AM in
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