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Nitrous Oxide for Depression

We offer nitrous oxide inhalation treatments.

Similar to ketamine:

Nitrous oxide works on some of the same pathways as ketamine and may be a good option for severe treatment-resistant depression. The nitrous treatment is similar to a ketamine treatment – resting in a comfortable chair to receive the medication for an hour – but uses a soft mask to deliver the gas mixture instead of an IV, and nitrous has less visual and sensation hallucinations than with a ketamine infusion.

We offer nitrous as an alternative to ketamine for patients who can’t stand the IV, or who don’t prefer the experience of ketamine, or who need to drive themselves (after a recovery period, of course).

What it is and how it works:

Nitrous oxide, also called laughing gas, was discovered in 1772. It is a clear gas with a pleasant, sweetish odor and taste. Inhalation of small amounts causes a euphoric affect, and in larger amounts it causes an anesthetic effect. It was quickly adopted, and still used widely, as a safe make option to make dental procedures tolerable. By the 1880s women were using it for pain relief during childbirth – including, famously, Queen Victoria!

Nitrous oxide affects many receptors in the nervous system including, but not limited to: dopamine receptors, alpha-2 adreno-receptors, benzodiazepine receptors, and N-methyl, d-aspartate (NMDA) receptors. NMDA receptor antagonism is also a mechanism of action for ketamine, and is generally theorized to be the most likely mechanism by which ketamine is so effective as treatment for depression – this also explains nitrous oxide’s potent anti-depressant promise.

Efficacy and safety:

There is limited research on the efficacy of nitrous oxide inhalation treatments for depression, however:

  • Initial clinical results are promising – with substantial and durable improvements in symptoms
  • There should be few, if any, psychoactive side effects during treatment
  • Nitrous oxide inhalation has a long history of safe use
  • Our clinical results at Lone Star Infusion are comprehensively reviewed and studied

Nitrous oxide is very safe when carefully and thoughtfully administered by a trained professional in a monitored setting with a carefully titrated dose and correct dose spacing and supplementation. However, recreational or “street” use can easily lead to hypoxia and death. With very extreme and prolonged exposures, patients can have difficulty metabolizing vitamin B12 which can lead to anemia and nerve damage – these exposures are far greater than from periodic clinical treatments and we do not expect to see these issues.

We strive to help our patients with the best-available evidence based medicine. We are excited to offer these nitrous oxide treatments. If you are interested in pursuing treatments, please contact us.

Resources:

“Laughing Gas as a Treatment for Depression?” Eugene Rubin, Psychology Today, 2015

“Laughing gas studied as depression treatment” Jim Dryden, the SOURCE, Washington University in St Louis, December 9, 2014

Nagele et al “Nitrous Oxide for Treatment-Resistant Major Depression: A Proof-of-Concept Trial” Biological Psychiatry July 1,2015

Zarate and Machado-Vieira “Potential Pathways Involved in the Rapid Antidepressant Effects of Nitrous Oxide” Biol Psychiatry. 2015 Jul 1

Kohtala et al “Putative rapid-acting antidepressant nitrous oxide (“laughing gas”) evokes rebound emergence of slow EEG oscillations during which TrkB signaling is induced” March 2018

“Laughing Gas to Be Used as Antidepressant in Australian Medical Trial” Gavin Butler, VICE, Apr 17 2019

Nagele, Zorumski, Conway “Exploring Nitrous Oxide as Treatment for Mood Disorders: Basic Concepts” J Clin Psychopharmacol. 2018 Apr

An Important Disclaimer: The information in this and other blog posts represents our informed opinion or the opinion of others, and does not constitute medical advice and should not be relied upon to make decisions regarding medical care. To address the specific details of your medical conditions and treatments please speak with your doctors.

Important Notice Regarding Discontinuation of Ketamine Treatment Services

Lone Star Infusion will discontinue providing ketamine infusion and treatment services effective February 23, 2026. This decision was not made lightly, and we understand this news may be concerning to you.

What This Means for Your Care

After February 23, 2026 our clinic will no longer provide ketamine treatments. You will need to establish care with another provider to continue ketamine therapy, or work with your treating psychiatrist or pain management physician to explore alternative treatment options.

Your Immediate Next Steps

  1. Contact your prescribing psychiatrist, primary care physician, or pain management specialist to discuss your ongoing treatment plan and alternatives.
  2. If you wish to continue ketamine therapy, please review the enclosed list of physician-supervised ketamine clinics in the Houston area. We do not endorse any particular provider; this list is provided for your convenience only.
  3. Contact our office to schedule any final appointments before [closure date] and to discuss your transition of care.

Your Medical Records

Your treatment records will remain available through Lone Star Infusion. To request copies of your records or to authorize transfer to a new provider, please contact our office at 281.947.3268 or send a written request to 14740 Barryknoll Lane, Ste. 140, Houston, TX 77079. There is no charge for transferring records to your new treatment provider.

Continuation of Care During Transition

We stay committed to your care during this transition period. Please contact our office at 281.947.3268 if you have questions, need to schedule appointments before our closure date, or require assistance with your transition to a new provider.

We understand this transition may be difficult, and we appreciate the trust you have placed in us for your care. Our staff is available to assist you during this process.

Sincerely,
Chauncey Jones, M.D.
Lone Star Infusion