A volatile substance is a compound that gives off vapours or fumes at room temperature. Volatile substances are also commonly known as solvents or inhalants. They include: butane gas, aerosol sprays, petrol, glue, correction fluids and paint thinners.

The effects of volatile substances depend on the amount inhaled; the person’s experience with volatile substances; the mood they are in; and the way in which the drug is taken.

Immediate effects are very similar to those of alcohol and include feeling less inhibited, disorientated and uncoordinated. The effects come on more quickly, because the substances enter the bloodstream from the lungs instead of the stomach. The effects last for 1 to 5 minutes and are usually over within 30 to 60 minutes of sniffing.

Hangovers and headaches often occur after the immediate effects wear off.

Research evidence suggests that short-term use of volatile substances rarely cause permanent damage and effects are reversible if the person stops using inhalants.

The long term use of aerosols and cleaning fluids can damage the kidneys, liver and the brain, but this is rare.

The long term use of leaded petrol can cause leukemia and various types of cancers, because the lead accumulates in the body. Other physical effects of petrol sniffing can also include: anorexia, seizure and sudden sniffing syndrome.

‘Sudden Sniffing Syndrome’ is caused by heart failure that may happen if a person does strenuous exercise or has a sudden fright straight after sniffing. However, this is rare and is usually associated with aerosols, butane gas and cleaning fluid.

The harms most associated with volatile substances are in how and where they are sniffed. Deaths or accidents can occur as a result of sniffing in unsafe places - on a roof or by a railway line.

Regular users can become dependent on volatile substances, as the substances become important in their daily lives.

The possibility of developing tolerance, that is, the need to use more to get the same effects as before, is very small. It is also rare for withdrawal symptoms to occur when a person stops using. Very heavy users, however, may experience headaches, muscular cramps and abdominal pain.

Inhaling volatile substances in Australia is not illegal. In NSW it is not an offence to inhale or sell products containing volatile substances. There are however certain restrictions on the marketing of products which are likely to be misused. Some aerosol pain relief sprays, type correction and lighter fluids are labelled with a warning statement.

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