Nitrous Oxide Nerve Damage Lawsuits Highlight Experts’ Warnings About Irreversible Spinal Cord Injuries

Researchers have found that repeated nitrous oxide inhalation causes B12 deficiency and permanent nerve damage, prompting a wave of lawsuits against whippet manufacturers in recent months.

Nitrous oxide, commonly known as “whippets” or “laughing gas”, is a familiar anesthetic in dental clinics and a common food propellant in whipped cream dispensers. However, a growing public health crisis has emerged as the gas is increasingly been sold and marketed for recreational inhalation, especially among teens and young adults, who are seeking a brief euphoric high.

Often sold under brand names like Galaxy Gas or GreatWhip, these flavored metal canisters can now be easily purchased online through retailers like Amazon.com, or at local smoke shops, which market the products in colorful packaging that downplays the toxic risks associated with the gas.

Medical authorities now warn that chronic nitrous oxide inhalation can cause devastating neurological injuries, including irreversible nerve damage, muscle weakness, and spinal cord degeneration. Recent studies and clinical case reports point to a direct biochemical mechanism that disrupts vitamin B12 activity in the body, impairing the nervous system’s ability to maintain healthy myelin—the protective insulation around nerves.

As the scope of harm becomes clearer, a wave of nitrous oxide nerve damage lawsuits are now being pursued, alleging that manufacturers failed to warn about the dangers of recreational use. Plaintiffs claim the products were marketed in a way that encouraged abuse, while downplaying or omitting life-altering side effects.

How Nitrous Oxide Use Can Damage the Spinal Cord

Doctors have long cautioned that nitrous oxide’s damage to the nervous system runs deeper than most users realize. The gas doesn’t simply deplete vitamin B12, it inactivates it at a molecular level.

This subtle but serious disruption prevents critical biochemical reactions, particularly the activity of the B12-dependent enzyme methionine synthase, which is vital for nerve health. When that enzyme stops working, the body cannot properly maintain myelin, the insulating sheath around nerve fibers that allows for smooth neural communication.

As a result, repeated nitrous oxide exposure can trigger functional B12 deficiency, a condition in which blood tests may show normal B12 levels, but that B12 is chemically unable to protect nerves. Elevated homocysteine and methylmalonic acid (MMA) scans are the only reliable early indicators of this hidden damage.

In simple terms, think of nerve fibers like coated electrical wires. When vitamin B12 is inactivated, the protective insulation cracks and frays. Signals slow, misfire, or stop. For users, that translates into numbness, coordination loss, weakness, and in serious cases, paralysis, classic symptoms of subacute combined degeneration, a spinal cord disorder increasingly documented in recreational users.

One of the most serious outcomes is a condition called subacute combined degeneration (SCD), a degenerative disease of the spinal cord that primarily affects the dorsal columns and lateral corticospinal tracts, impairing both movement and sensation.

❝Subacute combined degeneration of the spinal cord is a well-known complication of nitrous oxide use, even in individuals without classic B12 deficiency… Delayed diagnosis may result in irreversible neurologic damage, despite B12 repletion.❞
— ResearchGate: “Subacute Combined Degeneration Following Nitrous Oxide Abuse”

Government agencies and medical groups have echoed this concern. According to a 2023 UK government harms assessment, repeated nitrous oxide exposure “can cause serious and potentially permanent disability, but is treatable if recognized early.”

In one case report detailed by the Australian Journal of General Practice, an 18-year-old woman developed severe weakness and sensory loss after inhaling up to 200 whippets per day for six months.

MRI imaging revealed spinal cord lesions stretching from vertebrae C1 to C7—hallmarks of SCD. Her vitamin B12 levels appeared normal, but elevated methylmalonic acid and homocysteine confirmed the diagnosis. Despite months of hydroxocobalamin injections, her neurological recovery was incomplete.

Blood Tests Often Miss Nitrous Oxide Nerve Damage

One of the most dangerous aspects of nitrous oxide-related nerve injury is how easily it can be missed, even in clinical settings. Most doctors rely on serum vitamin B12 levels, but in many nitrous oxide users, those levels appear normal.

That’s because nitrous oxide doesn’t remove B12 from the body, it inactivates it, disabling its function without lowering its measured concentration. This can create a false sense of reassurance, allowing neurological damage to quietly progress.

Doctors now recognize this as functional B12 deficiency, a condition where the vitamin is present in the blood but biologically inactive. As noted in a 2024 case report on PubMed, a patient with normal B12 levels developed spinal cord lesions and neurologic symptoms, only confirmed through elevated methylmalonic acid (MMA) and homocysteine.

A review in Blood also confirms that standard B12 tests often fail to detect functional deficiency, especially in patients with neurological symptoms linked to nitrous oxide exposure.

Because of this, neurologists now rely on MMA and homocysteine testing as the most reliable early indicators of nitrous oxide–related nerve injury, often long before serum B12 shows any abnormalities.

Nitrous Oxide Nerve Damage Symptoms and Treatment

According to physicians, symptoms of nerve damage from nitrous oxide often begin subtly, with tingling in the hands or feet, slight balance issues, or unexplained fatigue. But with continued nitrous oxide exposure, those symptoms may escalate rapidly.

Symptoms of Nitrous Oxide Nerve Damage

• Tingling and numbness (paresthesia): Often starts in the feet and hands.
• Balance problems and unsteadiness: Due to impaired proprioception and spinal cord demyelination.
• Leg weakness or stiffness: May progress to difficulty walking or standing.
• Loss of joint position and vibration sense: Hallmark signs of dorsal column injury.
• Visual disturbances and mood changes: In rare cases, optic neuropathy and neuropsychiatric symptoms have been reported.

Nitrous Oxide Nerve Damage Treatment

• Immediate cessation of nitrous oxide use.
• Intramuscular hydroxocobalamin (vitamin B12): 1 mg every other day for at least two weeks, extended if symptoms persist.
• Folate correction: Often co-administered with B12.
• Serial MMA and homocysteine testing: To monitor biochemical recovery.
• MRI imaging of the spine: To identify dorsal column lesions.
• Rehabilitation support: Physical therapy and neuropathic pain management may be required.

Nitrous Oxide Nerve Damage Lawsuit Examples

A growing number of lawsuits have been filed by individuals who suffered nerve damage and other neurological injuries after using flavored nitrous oxide canisters sold for recreational use.

Galaxy Gas Lawsuit Filed Over Nerve Damage

In February 2025, a class action lawsuit was filed in the U.S. District Court for the Northern District of Georgia by Jacob Iannotti, a young South Carolina resident who says he suffered neurological injuries after repeatedly using Galaxy Gas flavored nitrous oxide canisters sold at local smoke shops.

According to the complaint, Iannotti was drawn in by the fruity flavors and deceptive marketing—ads that implied the product was “FDA approved” and safe for use. He allegedly began using Galaxy Gas regularly, unaware that repeated inhalation of nitrous oxide could lead to serious and potentially permanent spinal cord damage.

The lawsuit claims Iannotti developed symptoms consistent with subacute combined degeneration, a degenerative condition triggered by nitrous oxide’s inactivation of vitamin B12. He now seeks damages for what he describes as avoidable injuries caused by a product designed to promote addiction, with inadequate warnings and no safeguards to prevent abuse.

Whippet Lawsuit Filed After Spinal Cord Damage

In June 2025, a lawsuit was filed in the U.S. District Court for the Western District of Washington by a woman who alleges she suffered serious and permanent neurological injuries after regularly inhaling flavored nitrous oxide canisters distributed by Galaxy Gas.

According to the complaint, the plaintiff began using the canisters after encountering the product through social media marketing and flavored packaging that suggested the contents were safe for recreational use. Over time, she began experiencing numbness, weakness, and difficulty walking—classic signs of nerve damage associated with chronic nitrous oxide exposure.

She was later diagnosed with neurological damage linked to functional B12 deficiency and subacute combined degeneration, a spinal cord condition triggered when nitrous oxide inactivates the vitamin’s neurological function. The lawsuit claims that Galaxy Gas failed to provide adequate warnings, improperly marketed the product for inhalation, and designed the branding in a way that encouraged abuse—despite knowing the risks.

Nitrous Oxide Lawsuits

In response to the wave of neurological injuries, plaintiffs across the country are continuing to file lawsuits against companies that manufacture and distribute flavored nitrous oxide canisters.

Allegations include:

• Failure to warn: No visible labeling about the risk of permanent nerve injury.
• Deceptive marketing: Use of colorful, fruit-themed branding resembling candy or vape products.
• Improper distribution: Bulk shipments to unregulated retailers and online buyers with no age verification.

Eligible for a Nitrous Oxide Lawsuit?

You may be entitled to financial compensation if you or a loved one:

• Suffered from nitrous oxide addiction due to prolonged use of nitrous oxide canisters
• Used Galaxy Gas or other branded nitrous oxide canisters purchased at smoke shops or vape stores
• Experienced nerve damage, brain damage, or paralysis following recreational use
• Lost a loved one due to complications from nitrous oxide inhalation
• Regularly used flavored or large-volume canisters for non-medical or recreational purposes