How are they going to restrict sales?
An MP is calling for ministers to carry out a review into the use of nitrous oxide as a recreational drug.
Rosie Duffield will use a Commons debate on Tuesday to call for the substance - also known as laughing gas - to be reclassified.
The Labour MP says she believes is it becoming a new "gateway drug" for young people.
But a leading drugs charity says any move to tighten the law would be counter-productive.
Silver canisters
Sold legally, nitrous oxide is used for medical and commercial uses, such as making whipped cream - but is illegal when sold as a psychoactive drug.
When inhaled, the gas can cause elation and hallucinations.
In some cases, it can lead to a lack of oxygen, causing unconsciousness or suffocation.
The discarded silver canisters that the gas comes in have become a familiar sight underfoot in many parks and streets.
Read in full - MP to call for laughing gas restrictions
An MP is calling for ministers to carry out a review into the use of nitrous oxide as a recreational drug.
Rosie Duffield will use a Commons debate on Tuesday to call for the substance - also known as laughing gas - to be reclassified.
The Labour MP says she believes is it becoming a new "gateway drug" for young people.
But a leading drugs charity says any move to tighten the law would be counter-productive.
Silver canisters
Sold legally, nitrous oxide is used for medical and commercial uses, such as making whipped cream - but is illegal when sold as a psychoactive drug.
When inhaled, the gas can cause elation and hallucinations.
In some cases, it can lead to a lack of oxygen, causing unconsciousness or suffocation.
The discarded silver canisters that the gas comes in have become a familiar sight underfoot in many parks and streets.
Read in full - MP to call for laughing gas restrictions