Generic Name Nitrous Oxide
Bangla Name নাইট্রাস অক্সাইড
Available brands 1
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Introduction

Nitrous oxide, commonly known as "laughing gas", is a chemical compound with the chemical formula N2O. At room temperature, it is a colorless non-flammable gas, with a pleasant, slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it, a property that has led to its recreational use as an inhalant drug.

Uses

Nitrous oxide is an inhalatory gas used as an adjunct to improve oxygenation and reduce the need for extracorporeal membrane oxygenation in certain neonates with hypoxic respiratory failure.

Associated Conditions

  • Analgesia
  • General Anesthesia

Mechanism of Action

Findings to date indicate that nitrous oxide induces opioid peptide release in the brain stem leading to the activation of descending noradrenergic neurones, which results in modulation of the nociceptive process in the spinal cord. Several receptor–effector mechanisms including dopamine receptors, α2 adrenoceptors, benzodiazepine receptors and -methyl- -aspartate (NMDA) receptors have been implicated although the relationship of one with the other is not known.

Food Interactions

No interactions found.

Medical review

Last reviewed: 24 Jul 2026

Medically reviewed by:

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Brand medicines containing Nitrous Oxide