Nitrous Oxide (Nitrous oxide (laughing gas))
A short-acting dissociative gas used in dentistry and medicine. Produces brief euphoria and dreamy detachment; studied recently for treatment-resistant depression.
How it works
Blocks NMDA glutamate receptors and affects opioid pathways, producing brief dissociation and pain relief.
Key facts
- Molecular weight: 44.01 g/mol
- Half-life: Very short
- Bioavailability: Oral
- Storage: Research/reference only.
Dosing overview
- Typical dose: Varies by individual and setting
- Frequency: Occasional
- Duration: Acute effects last seconds to minutes
- Route: Inhaled
Protocol notes
- Inhaled briefly from a medical setup, dental mask, or a balloon (never directly from a tank).
- Effects last seconds to a minute or two, so people sit down to avoid falling.
- Heavy repeated use depletes vitamin B12 and can cause nerve damage, so frequency matters most.
Reported benefits
- Established medical/dental use
- Very short experience
- Studied for treatment-resistant depression
- Rapid onset and offset
Possible side effects
- Vitamin B12 depletion and nerve damage with heavy use
- Oxygen deprivation risk
- Dizziness and falls
- Dependence with frequent use
Research
- Nitrous oxide for treatment-resistant depression (2021): A single inhaled session reduced depressive symptoms, with a lower concentration working about as well as a higher one.
Compare Nitrous Oxide
Research and educational reference only. Not medical advice.