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Nitrous oxide

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Active ingredient
Nitrous Oxide 990 mL/1 L
Other brand names
Dosage form
Gas
Route
Respiratory (inhalation)
Prescription status
Rx (prescription)
Marketed in the U.S.
Since 2009
Label revision date
December 9, 2025
Active ingredient
Nitrous Oxide 990 mL/1 L
Other brand names
Dosage form
Gas
Route
Respiratory (inhalation)
Prescription status
Rx (prescription)
CSA schedule
Not a scheduled drug
Marketed in the U.S.
Since 2009
Label revision date
December 9, 2025
Manufacturer
Quality Air Products Inc
Registration number
NDA206009
NDC root
63978-201

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Drug Overview

Nitrous oxide is a non-flammable gas that is classified as a prescription medication in the United States. It is commonly used for its anesthetic effects, which can help relieve pain and anxiety during medical procedures. This gas is typically administered under the supervision of a licensed practitioner who is experienced in its use, ensuring that it is applied safely and effectively.

As an oxidizer, nitrous oxide plays a role in enhancing the effects of other anesthetics and can be used in various medical settings. Its ability to provide rapid relief makes it a valuable tool in both dental and surgical procedures, helping to create a more comfortable experience for patients.

Uses

Nitrous oxide is a gas that is used in medical settings, primarily for its anesthetic properties. It is important to note that the administration of nitrous oxide can be hazardous or may not be suitable for everyone. Therefore, it should only be used by or under the supervision of a licensed healthcare professional who has experience with this gas.

While there are no specific teratogenic effects (which means it does not cause birth defects) or nonteratogenic effects noted, it is essential to approach its use with caution and under proper medical guidance. Always consult with your healthcare provider to understand if nitrous oxide is appropriate for your situation.

Dosage and Administration

It's important to know that Nitrous Oxide should only be used by or under the supervision of a licensed healthcare professional who is experienced in its administration. This ensures that you receive the safest and most effective care.

When using Nitrous Oxide, it is delivered through inhalation (breathing it in through your mouth or nose). The active ingredient in this medication is Nitrous Oxide, and it comes in a concentration of 990 mL in a 1-liter container. Always follow your healthcare provider's instructions regarding how and when to use this medication to ensure the best results.

What to Avoid

It's important to use this product safely. Make sure to avoid getting the liquid in your eyes, on your skin, or on your clothing, as this can cause irritation. Additionally, please do not remove the product label, as it contains important information you may need.

While there are no specific contraindications or concerns about abuse, misuse, or dependence mentioned, always use the product as directed to ensure your safety and well-being. If you have any questions or concerns, consult with a healthcare professional.

Side Effects

Using this medication may lead to some serious side effects. You could experience anesthetic effects, which can make you feel numb or unable to feel sensations. There is also a risk of frostbite, a condition where skin and underlying tissues freeze, and rapid suffocation, which is a life-threatening situation where you cannot breathe properly.

It's important to be aware of these potential reactions. If you notice any unusual symptoms or feel unwell after using this medication, seek medical attention immediately.

Warnings and Precautions

Using nitrous oxide can be risky, and it should only be administered by a licensed healthcare professional who is experienced in its use. This gas can be hazardous, especially if not handled properly. It is important to avoid breathing in the gas directly and to ensure that the area is well-ventilated. Keep oil and grease away from the equipment, and make sure to use devices that are specifically designed for oxygen and can handle high pressure. Always follow safety guidelines, including those outlined in the Material Safety Data Sheet (MSDS).

If you inhale nitrous oxide, it’s crucial to get fresh air immediately. If you or someone else is not breathing, perform artificial respiration, and if breathing becomes difficult, provide oxygen. Seek medical help right away. Additionally, be cautious of frostbite, which can occur if the gas comes into contact with skin; if this happens, seek medical treatment immediately.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, it's important to be aware of the general signs of an overdose, which can include symptoms like extreme drowsiness, confusion, or difficulty breathing. If you suspect an overdose, it is crucial to seek immediate medical help.

In case of an emergency, call your local emergency number or go to the nearest hospital. Always keep medications out of reach of children and follow the prescribed dosage to prevent any potential risks. If you have any concerns or questions about your medication, don’t hesitate to reach out to your healthcare provider for guidance.

Pregnancy Use

Using nitrous oxide during pregnancy may pose risks and is generally not recommended. If you are pregnant or planning to become pregnant, it's important to discuss any use of nitrous oxide with your healthcare provider to understand the potential hazards and ensure the safety of you and your baby. Always prioritize open communication with your medical team regarding any medications or treatments during this time.

Lactation Use

If you are breastfeeding or planning to breastfeed, it's important to note that there is no specific information available about the use of Nitrous Oxide in nursing mothers or its effects on lactation. This means that the potential impact on breast milk production or the nursing infant is not clearly defined.

As always, it's best to consult with your healthcare provider for personalized advice and to discuss any concerns you may have regarding medications and breastfeeding. They can help you weigh the benefits and risks based on your individual situation.

Pediatric Use

Using nitrous oxide for children can be risky and is not recommended without careful supervision. It should only be administered by a licensed healthcare professional who has experience with this gas. This expert should be knowledgeable about when and how to use nitrous oxide, including the appropriate dosages and potential side effects, especially in pediatric patients (children).

If you are considering nitrous oxide for your child, ensure that it is done under the guidance of a qualified practitioner who understands the specific needs and precautions necessary for children. Always prioritize your child's safety by discussing any concerns with their healthcare provider.

Geriatric Use

When it comes to using this medication in older adults, there is no specific information available about dosage adjustments, safety concerns, or special precautions. This means that if you or a loved one is an older adult considering this medication, it’s important to consult with a healthcare provider. They can help determine the best approach based on individual health needs and any other medications being taken. Always prioritize open communication with your healthcare team to ensure safe and effective treatment.

Renal Impairment

If you have kidney problems, it's important to know that there is no specific information available regarding dosage adjustments, special monitoring, or safety considerations for using Nitrous Oxide. This means that the insert does not provide guidelines tailored for patients with renal impairment.

Before using Nitrous Oxide, you should consult your healthcare provider to discuss your kidney health and any potential risks. They can help determine the best approach for your situation.

Hepatic Impairment

If you have liver problems, it's important to know that the drug insert for Nitrous Oxide does not provide specific information about dosage adjustments, special monitoring, or precautions for your condition. This means that there are no established guidelines for how Nitrous Oxide should be used in patients with liver impairment.

Before using Nitrous Oxide, you should discuss your liver health with your healthcare provider to ensure it is safe for you. They can provide personalized advice and monitor your condition as needed.

Drug Interactions

It's important to have open conversations with your healthcare provider about any medications or tests you may be taking. While there are no specific drug interactions or laboratory test interactions noted for this medication, your healthcare provider can help ensure that your overall treatment plan is safe and effective. Always share your complete list of medications and any health concerns to receive the best care possible.

Storage and Handling

To ensure safe storage and handling of the product, make sure to keep it in a well-ventilated area. It's important to keep oil and grease away from the gas to prevent any potential hazards. Always use the equipment that has been properly cleaned for oxygen and is rated for the cylinder pressure.

When it comes to temperature, the cylinder should never exceed 52˚C (125˚F). When opening the valve, do so slowly to avoid sudden pressure changes. Remember to close the valve after each use and when the cylinder is empty. Additionally, using a backflow preventive device in the piping is essential for safety. Following these guidelines will help you use the product safely and effectively.

Additional Information

You will use this medication through inhalation, which means you will breathe it in to receive the treatment. There are no additional details available regarding laboratory tests, abuse potential, or patient counseling information.

FAQ

What is Nitrous Oxide?

Nitrous Oxide is a non-flammable gas classified as a prescription drug (Rx only) and is listed in the United States Pharmacopeia (USP).

What are the warnings associated with Nitrous Oxide?

Administration may be hazardous or contraindicated, and it should only be used under the supervision of a licensed practitioner experienced in its use. It can cause rapid suffocation, anesthetic effects, and frostbite.

What safety precautions should I take when using Nitrous Oxide?

Avoid breathing the gas, store it with adequate ventilation, and keep oil and grease away. Use only with equipment rated for cylinder pressure and do not let the cylinder temperature exceed 52˚C (125˚F).

What should I do in case of an emergency involving Nitrous Oxide?

If inhaled, remove the person to fresh air, provide artificial respiration if not breathing, and give oxygen if breathing is difficult. Call a physician immediately.

Can Nitrous Oxide be used during pregnancy?

Administration of Nitrous Oxide may be hazardous or contraindicated in pregnancy, and it should only be used under the supervision of a qualified practitioner.

What are the potential adverse reactions of Nitrous Oxide?

Potential adverse reactions include anesthetic effects, frostbite, and rapid suffocation.

What is the route of administration for Nitrous Oxide?

Nitrous Oxide is administered via respiratory inhalation.

What should I avoid while using Nitrous Oxide?

Do not get the liquid in your eyes, on your skin, or clothing, and do not remove the product label.

What are the available contents of Nitrous Oxide?

Nitrous Oxide is available in various sizes, including 2 lb, 7 lb, 20 lb, 30 lb, and 56 lb cylinders.

Packaging Info

The table below lists all NDC Code configurations of Nitrous Oxide, the U.S. brand-name prescription product. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Nitrous Oxide.
Details

FDA Insert (PDF)

This is the full prescribing document for Nitrous Oxide, submitted to the U.S. Food and Drug Administration (FDA). It contains official information for healthcare providers, including how to use the medication, possible side effects, and safety warnings.

View FDA-approved insert (PDF)

Description

Nitrous Oxide, with a Chemical Abstracts Service (CAS) number of 10024-97-2, is a non-flammable gas classified as an oxidizer (5.1). It is available in various container sizes, including 2 lb, 7 lb, 20 lb, 30 lb, and 56 lb.

Uses and Indications

This drug is indicated for use in medical settings where nitrous oxide is administered. The administration of nitrous oxide may be hazardous or contraindicated in certain situations. It is essential that this drug is used only by or under the supervision of a licensed practitioner who is experienced in the use and administration of nitrous oxide.

There are no specific teratogenic or nonteratogenic effects associated with this drug.

Dosage and Administration

For administration, Nitrous Oxide is to be used exclusively by or under the supervision of a licensed practitioner who is experienced in its use and administration.

The route of administration is via respiratory inhalation. The active ingredient is Nitrous Oxide, provided in a strength of 990 mL per 1 L.

Healthcare professionals should ensure that the administration is conducted in a controlled environment, adhering to established protocols for inhalation therapy. Proper equipment and monitoring should be utilized to ensure patient safety and effective delivery of the gas.

Contraindications

There are no specific contraindications identified for the use of this product. However, it is advised to avoid contact with eyes, skin, or clothing, as exposure may lead to irritation. Additionally, the product label should not be removed, as it contains important information regarding the product's use and safety.

Warnings and Precautions

Administration of nitrous oxide may pose significant hazards and is contraindicated in certain situations. It is classified as a high-pressure oxidizing liquid and gas, which vigorously accelerates combustion, potentially leading to rapid suffocation. Additionally, nitrous oxide can induce anesthetic effects and may cause frostbite upon contact with skin or mucous membranes.

To ensure safe handling and administration, it is imperative to avoid inhalation of the gas. Adequate ventilation must be maintained during use, and all oil and grease should be kept away from the equipment. Only utilize apparatus that has been cleaned for oxygen and is rated for the appropriate cylinder pressure. Care should be taken to prevent liquid from coming into contact with the eyes, skin, or clothing. The temperature of the cylinder must not exceed 52˚C (125˚F). When opening the valve, it should be done slowly, and the valve must be closed after each use and when the cylinder is empty. A backflow preventive device should be employed in the piping system, and all procedures should be conducted in accordance with the Material Safety Data Sheet (MSDS).

Nitrous oxide should only be administered by or under the supervision of a licensed practitioner who possesses experience in its use. This practitioner must be knowledgeable about the indications, effects, dosages, methods, frequency, duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

In the event of inhalation, it is critical to remove the individual to fresh air immediately. If the person is not breathing, artificial respiration should be provided. If breathing difficulties arise, supplemental oxygen should be administered, and a physician should be contacted without delay. In cases of frostbite, prompt medical treatment is essential.

No specific laboratory tests are required for the safe use of nitrous oxide. However, practitioners should remain vigilant and monitor patients closely for any adverse effects during administration.

Side Effects

Patients may experience a range of adverse reactions associated with the use of this product. Serious adverse reactions include rapid suffocation, which is a critical concern and warrants immediate medical attention. Additionally, patients may experience anesthetic effects, which can impact their overall sensory perception and response to stimuli.

Common adverse reactions reported include frostbite, a condition that can occur under specific circumstances related to the product's use. It is essential for healthcare providers to monitor patients closely for these reactions and to educate them on the potential risks involved.

Given the severity of some of these reactions, it is crucial for patients to be aware of the signs and symptoms associated with rapid suffocation and to seek prompt medical assistance if they occur.

Drug Interactions

There are currently no documented drug interactions associated with this medication. Additionally, there is no information available regarding interactions with laboratory tests. As such, no specific recommendations for dosage adjustments or monitoring are warranted at this time.

Packaging & NDC

The table below lists all NDC Code configurations of Nitrous Oxide, the U.S. brand-name prescription product. Columns show Packaging, Formulation Type, and Active Ingredient Strength.

Packaging configurations for Nitrous Oxide.
Details

Pediatric Use

Administration of nitrous oxide may pose hazards or be contraindicated in pediatric patients. It is essential that nitrous oxide is used only by or under the supervision of a licensed practitioner who has experience in its use and administration. This practitioner must be knowledgeable about the indications, effects, dosages, methods, frequency, and duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions, particularly when treating children.

Geriatric Use

There is no specific information regarding the use of this medication in geriatric patients, including dosage adjustments, safety concerns, or special precautions. Healthcare providers should exercise caution when prescribing this medication to elderly patients, as individual responses may vary. It is advisable to monitor these patients closely for any adverse effects or changes in efficacy, given the lack of targeted data for this population.

Pregnancy

Administration of nitrous oxide may pose potential risks during pregnancy and is contraindicated in this population. Healthcare professionals should exercise caution when considering the use of nitrous oxide in pregnant patients due to the lack of sufficient data on its safety and potential fetal impacts. It is essential to evaluate the risks versus benefits in each case and to consider alternative analgesic options that may be safer for use during pregnancy. Women of childbearing potential should be informed of these risks and advised to discuss any concerns with their healthcare provider.

Lactation

There is no specific information regarding the use of Nitrous Oxide in lactating mothers or any lactation considerations provided in the drug insert. Therefore, healthcare professionals should exercise caution and consider the lack of data when advising lactating mothers about the use of this agent. The potential effects on breastfed infants remain undetermined due to the absence of relevant studies.

Renal Impairment

Patients with renal impairment have no specific information regarding dosage adjustments, special monitoring, or safety considerations provided in the insert for Nitrous Oxide. Therefore, healthcare professionals should exercise caution when administering this agent to individuals with reduced kidney function, as the absence of data limits the ability to make informed decisions regarding its use in this population.

Hepatic Impairment

Patients with hepatic impairment have not been specifically studied in relation to the use of Nitrous Oxide. Consequently, there is no available information regarding dosage adjustments, special monitoring requirements, or precautions for this patient population. It is recommended that healthcare providers exercise caution and consider the overall clinical context when administering Nitrous Oxide to patients with compromised liver function.

Overdosage

In the absence of specific overdosage information, it is essential for healthcare professionals to remain vigilant and prepared for potential scenarios involving overdose.

Healthcare providers should be aware that the clinical presentation of an overdose may vary depending on the substance involved and the individual patient’s characteristics. Symptoms of overdose can range from mild to severe and may include altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate medical evaluation is recommended. Healthcare professionals should assess the patient's vital signs and conduct a thorough clinical examination. Supportive care should be initiated as necessary, which may include airway management, intravenous fluids, and monitoring of vital parameters.

If specific antidotes or treatments are available for the substance involved, they should be administered according to established protocols. Consultation with a poison control center or a medical toxicologist may also be beneficial in managing the case effectively.

It is crucial to document all findings and interventions in the patient's medical record to ensure continuity of care and facilitate any necessary follow-up.

Nonclinical Toxicology

No teratogenic or non-teratogenic effects have been reported in the available nonclinical studies. Additionally, there is no information regarding animal pharmacology and toxicology. The absence of data in these areas limits the understanding of the compound's potential effects in nonclinical settings.

Postmarketing Experience

Postmarketing experience has revealed the following adverse reactions reported voluntarily or through surveillance programs: hypoxia, neurological effects, nausea and vomiting, headache, dizziness, altered mental status, increased intracranial pressure, cardiovascular effects including hypotension and bradycardia, respiratory depression, and frostbite injuries resulting from improper handling of the gas.

Patient Counseling

Healthcare providers should advise patients that the administration of nitrous oxide may pose hazards or be contraindicated in certain situations. It is essential that nitrous oxide is used only by or under the supervision of a licensed practitioner who possesses experience in its use and administration. This practitioner should be well-versed in the indications, effects, dosages, methods, frequency, duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

Providers must communicate the following warnings to patients: nitrous oxide is a high-pressure oxidizing liquid and gas that vigorously accelerates combustion, can cause rapid suffocation, and may induce anesthetic effects. Additionally, patients should be made aware that exposure to nitrous oxide can lead to frostbite.

Patients should be instructed to avoid breathing the gas directly and to ensure that the area is adequately ventilated during use. It is crucial to keep oil and grease away from the equipment and to use only apparatus that has been cleaned for oxygen and is rated for cylinder pressure. Patients should be cautioned against allowing liquid nitrous oxide to come into contact with their eyes, skin, or clothing. Furthermore, the cylinder temperature should not exceed 52˚C (125˚F), and the valve should be opened slowly. After each use and when the cylinder is empty, the valve should be closed.

Healthcare providers should emphasize the importance of using a backflow preventive device in the piping and adhering to the guidelines outlined in the Material Safety Data Sheet (MSDS). In the event of inhalation, patients should be instructed to move to fresh air immediately. If the patient is not breathing, artificial respiration should be administered, and if breathing is difficult, oxygen should be provided. It is imperative to call a physician in such cases. In instances of frostbite, patients should seek medical treatment without delay.

Storage and Handling

The product is supplied in a cylinder format, which requires careful handling and storage to ensure safety and efficacy. It is essential to store and use the product in an area with adequate ventilation to prevent the accumulation of potentially harmful gases.

To maintain the integrity of the cylinder, it is crucial to keep oil and grease away from the gas. The equipment used with this product must be specifically cleaned for oxygen use and rated for the appropriate cylinder pressure.

The temperature of the cylinder must not exceed 52˚C (125˚F) to prevent any risk of degradation or failure. When operating the cylinder, the valve should be opened slowly to control the release of gas. After each use, and when the cylinder is empty, the valve must be closed to ensure safety. Additionally, a backflow preventive device should be utilized in the piping to prevent any reverse flow of gas.

Additional Clinical Information

The route of administration for the medication is via respiratory inhalation. There are no additional details available regarding laboratory tests, abuse information, patient counseling, or postmarketing experience.

FDA Insert (PDF)

This document is the official FDA-approved prescribing information for Nitrous Oxide as submitted by Quality Air Products Inc. It includes detailed information about indications, dosage, contraindications, warnings, and clinical pharmacology.

View full prescribing information (PDF)

Data Generation & Sources

This page was automatically generated and is maintained by the AllDrugs AI Data-Science Team. It was built from the FDA Structured Product Label (DailyMed) for Nitrous Oxide, retrieved by a validated AI data-extraction workflow.

All FDA-approved dosage forms and strengths are listed in the Packaging & NDC Codes section above. Regulatory status, pharmacologic class (EPC), and mechanism of action (MoA) were cross-checked against the FDA Orange Book (NDA206009) and the NSDE NDC Directory daily file.

Note: an automated daemon monitors NSDE checksums; when the record for this NDC changes, the new file is pulled instantly and this page is refreshed.

No human clinician has reviewed this version.

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Primary FDA sources:

Orange Book data shown on this page are limited to Regulatory Status (Rx), Established Pharmacologic Class (EPC), and Mechanism of Action (MoA).

Regulatory data notice: Information on this page is reproduced verbatim from FDA public databases (NSDE, Orange Book, Purple Book, DailyMed SPL). NDA/ANDA drugs are FDA-approved, BLA biologics are FDA-licensed. Inclusion alone does not guarantee current market availability or imply FDA endorsement.

Medical disclaimer: This AI-generated content is provided for educational purposes only and does not constitute medical advice. Always consult a licensed healthcare professional for diagnosis or treatment decisions.