What are the Benefits of Entonox Gas?
REDUCE DISCOMFORT
Entonox reduces pain and anxiety.
BOOST RESULTS
Allows you to tolerate more effective treatments.
RAPID RECOVERY
Wears off within minutes, so you can drive home safely.
About Entonox Gas
Entonox is a safe, widely used inhaled medical gas used to give quick relief from pain. It is a gas that contains a mixture of:
- 50% oxygen; and
- 50% nitrous oxide – commonly known as laughing gas.
Entonox is considered very safe, with few side effects during short-term use. The pain-relieving affect starts working within a few breaths. It typically wears off quickly (5-10 minutes) so people can drive home afterwards.
Despite it wearing off quickly, we still recommend an observation period of 20-30 minutes before driving home.1Young A, Ismail M, Papatsoris AG, Barua JM, Calleary JG, Masood J. Entonox® inhalation to reduce pain in common diagnostic and therapeutic outpatient urological procedures: a review of the evidence. Ann R Coll Surg Engl. 2012;94(1):8-11. doi:10.1308/003588412X13171221499702


How Does Entonox Gas Work?
Nitrous oxide has been used for over 200 years to help with relieving pain. Recently, oxygen has been added to nitrous oxide to produce Entonox and ensure its safety.
The inhaled nitrous oxide enters the blood stream rapidly. It starts working within about 20 seconds and achieves peak effect within about 3-5 minutes. Nitrous oxide works by reducing pain impulses and signals that travel to the brain. It works in a similar way to opioid medications.
Nitrous oxide also has an anti-anxiety effect by reducing anxiety impulses and signals similar to how benzodiazepine medications work.2Young A, Ismail M, Papatsoris AG, Barua JM, Calleary JG, Masood J. Entonox® inhalation to reduce pain in common diagnostic and therapeutic outpatient urological procedures: a review of the evidence. Ann R Coll Surg Engl. 2012;94(1):8-11. doi:10.1308/003588412X13171221499702
What Can Entonox Gas be Used For?
Entonox gas can be used for any procedure that causes discomfort. At Anue, we most commonly use Entonox gas during the following treatments:
- Frax laser treatment
- Fractional CO2 laser treatment
- People that have difficulty tolerating other treatments
Entonox gas is not recommended during pregnancy.

Why Anue for Entonox Gas?
We believe our clients deserve access to expert, Entonox gas. That is why we offer our services by our trusted team, supervised by renowned specialist dermatologist, Dr. David Lim.
By using refined techniques, qualified professionals, and high-quality products, we aim to make you look and feel your best. Our Entonox gas treatments are safe and effective at helping you achieve your goals.

