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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 2014
Label revision date
October 28, 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 2014
Label revision date
October 28, 2025
Manufacturer
American Welding & Gas
Registration number
NDA205704
NDC root
44076-012

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Drug Overview

Nitrous oxide USP is a medication that is primarily used for its anesthetic and analgesic (pain-relieving) properties. It is often administered in medical settings under the supervision of a licensed practitioner who is experienced in its use. This gas can help induce a state of relaxation and reduce pain during various medical procedures.

As an oxidizer, nitrous oxide can enhance the effects of other anesthetics and is commonly used in dentistry and surgery. It is important to note that nitrous oxide should only be used in controlled environments due to its potential hazards, including the risk of drowsiness or dizziness.

Uses

Nitrous Oxide is a gas that is used primarily for its anesthetic and analgesic (pain-relieving) properties. It is important to note that the administration of Nitrous Oxide can be hazardous and should only be performed by a licensed practitioner who is experienced in its use. This professional will be knowledgeable about the appropriate dosages, methods of administration, and potential side effects.

While there are no specific teratogenic effects (which refer to substances that can cause birth defects) or nonteratogenic effects noted with Nitrous Oxide, it is crucial to approach its use with caution and under proper supervision. Always consult with a qualified healthcare provider to ensure safe and effective use.

Dosage and Administration

When using this medication, it is important to know that it is administered through the respiratory system, specifically by inhalation (breathing in). This means you will breathe in the medication to receive its effects. However, you should only use this medication under the guidance of a licensed healthcare professional who is experienced in its use.

Your healthcare provider will ensure that they are familiar with how to properly administer the medication, including understanding its indications (reasons for use), effects, dosages, and the methods of administration. They will also determine how often and for how long you should use it, ensuring your safety and the effectiveness of the treatment. Always follow their instructions closely for the best results.

What to Avoid

It’s important to be cautious when using Nitrous Oxide. You should only use it under the supervision of a licensed practitioner who is experienced with this substance. They will be familiar with its effects, dosages, and any potential hazards or side effects.

Make sure to follow these safety guidelines: do not handle Nitrous Oxide until you have read and understood all safety precautions. Avoid breathing in the gas, and ensure it does not come into contact with your eyes, skin, or clothing. Taking these steps will help ensure your safety while using this substance.

Side Effects

Using nitrous oxide can come with some risks. It may cause drowsiness or dizziness, and in some cases, it can displace oxygen, leading to rapid suffocation. Additionally, nitrous oxide is an oxidizer, which means it can increase the risk of fire. There is also a possibility of frostbite if the gas comes into contact with your skin.

It's important to use nitrous oxide only under the supervision of a qualified healthcare professional. If you experience any adverse effects, such as difficulty breathing or skin irritation, seek fresh air immediately and consult a medical professional. Always handle the gas carefully to avoid inhalation or contact with your eyes, skin, or clothing.

Warnings and Precautions

Using Nitrous Oxide can be risky, so it’s important that it is administered only by a licensed practitioner who knows how to use it safely. This gas can be dangerous as it may cause or worsen fires, is under pressure and can explode if heated, and can lead to drowsiness, dizziness, or even suffocation by displacing oxygen. Always handle it with care, keeping it away from flammable materials and ensuring that you are in a well-ventilated area.

If you accidentally inhale Nitrous Oxide, move to fresh air immediately and seek medical help if you feel unwell. If the gas comes into contact with your skin, do not rub the area; instead, gently thaw it with lukewarm water and get medical attention right away. Always read the safety instructions before use and follow all precautions to ensure your safety.

Overdose

It appears that there is no specific information available regarding overdosage for this medication. However, if you suspect that you or someone else may have taken too much of a medication, it’s important to be aware of potential signs of an overdose, which can include unusual drowsiness, confusion, or difficulty breathing.

If you notice any of these symptoms, or if you are unsure whether an overdose has occurred, seek immediate medical help. You can contact your local emergency services or go to the nearest hospital. Always keep medications out of reach of children and follow the prescribed dosage to prevent any risk of overdose.

Pregnancy Use

Using Nitrous Oxide during pregnancy is not recommended, as it is contraindicated (not advised) for expectant mothers. If you are pregnant or planning to become pregnant, it is crucial to avoid this substance due to potential risks.

Additionally, Nitrous Oxide should only be administered by a licensed practitioner who has experience with its use. Be aware that it can also pose a fire hazard, as it acts as an oxidizer, which means it can support combustion. Always consult with your healthcare provider about safe options for pain management during pregnancy.

Lactation Use

If you are breastfeeding, you may be wondering about the use of Nitrous Oxide. Currently, there are no specific warnings or recommendations regarding its use for nursing mothers. Additionally, there is no information available about whether Nitrous Oxide is passed into breast milk or any potential risks it may pose to your infant.

As always, it's a good idea to discuss any concerns or questions with your healthcare provider to ensure the best choices for you and your baby.

Pediatric Use

Currently, there is no specific information available regarding the use of Nitrous Oxide in children. This means that there are no recommended ages, dosage differences, or safety concerns outlined for pediatric (children's) use. If you are considering this treatment for a child, it is important to consult with a healthcare professional to discuss any potential risks and to ensure the best care for your child.

Geriatric Use

When it comes to using Nitrous Oxide, there are no specific considerations or adjustments needed for older adults. This means that elderly patients do not require different dosages or special precautions compared to younger individuals. You can feel assured that the information provided does not highlight any unique safety concerns for older adults regarding this treatment. Always consult with your healthcare provider if you have any questions or concerns about medications and their use in older age.

Renal Impairment

If you have kidney problems, it's important to know that the information provided does not include specific guidelines for dosage adjustments, special monitoring, or safety considerations related to renal impairment (kidney issues). This means that there are no tailored recommendations for how your treatment may need to change based on your kidney function.

Always consult your healthcare provider for personalized advice and to ensure that your treatment plan is safe and effective for your specific situation. They can help monitor your kidney health and make any necessary adjustments to your medications.

Hepatic Impairment

If you have liver problems, it's important to know that there is no specific information available regarding dosage adjustments, special monitoring, or precautions for using Nitrous Oxide. This means that the insert does not provide guidelines tailored for individuals with hepatic impairment (liver issues).

Before using Nitrous Oxide, it’s a good idea to discuss your liver condition with your healthcare provider. They can help determine the best approach for your situation and ensure your safety while using this medication.

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 everything you are taking works well together and is safe for you. Always share your complete list of medications and any recent lab tests to avoid any potential issues. Your health and safety should always come first.

Storage and Handling

To ensure safe storage and handling of your product, keep it away from clothing and other flammable materials. It's important to store and use the product outdoors or in a well-ventilated area to prevent any buildup of harmful gases. Make sure that the valves and fittings are kept free from grease and oil, as these can pose safety risks.

When temperatures rise above 52°C (125°F), protect the product from direct sunlight to avoid overheating. Always open the valve slowly to prevent sudden releases, and remember to close the valve after each use and when the product is empty to maintain safety. Following these guidelines will help you use the product effectively and safely.

Additional Information

When using Nitrous Oxide, it's important to remember that it should only be administered by a licensed practitioner who is experienced with this gas. You should not handle it until you have read and understood all safety precautions. Make sure to store it away from flammable materials and keep valves and fittings free from grease and oil. Avoid breathing in the gas and prevent contact with your eyes, skin, or clothing. Always use it outdoors or in a well-ventilated area, and if there's a fire, stop the leak if it's safe to do so.

Additionally, open the valve slowly, close it after each use, and protect the gas from sunlight if temperatures exceed 125°F (52°C). It's crucial to read and follow the Safety Data Sheet (SDS) before using Nitrous Oxide to ensure safe handling and usage.

FAQ

What is Nitrous Oxide used for?

Nitrous Oxide is used for sedation and pain relief, but it should only be administered by a licensed practitioner experienced in its use.

What are the dangers of using Nitrous Oxide?

Nitrous Oxide may cause drowsiness, dizziness, and can displace oxygen, leading to rapid suffocation. It is also an oxidizer that may intensify fire.

What safety precautions should I take when using Nitrous Oxide?

You should read and understand all safety precautions, avoid breathing the gas, and keep it away from combustible materials. Use it only in well-ventilated areas.

What should I do in case of inhalation of Nitrous Oxide?

If inhaled, remove the person to fresh air and keep them comfortable for breathing. Call a poison center or doctor if they feel unwell.

Is Nitrous Oxide safe to use during pregnancy?

Nitrous Oxide is contraindicated in pregnancy and should not be used.

What should I do if Nitrous Oxide comes into contact with my skin?

Thaw frosted parts with lukewarm water without rubbing the area, and seek immediate medical advice.

What is the route of administration for Nitrous Oxide?

Nitrous Oxide is administered via respiratory inhalation.

Who should administer Nitrous Oxide?

Nitrous Oxide should only be administered by or under the supervision of a licensed practitioner familiar with its indications and precautions.

What should I do if there is a fire involving Nitrous Oxide?

If safe, stop the leak and use a back flow preventive device in the piping. Always follow safety protocols.

What is the contact information for the manufacturer of Nitrous Oxide?

The manufacturer is American Welding and Gas, located at 1346 Monad Road, Billings, MT 59101. You can contact them at 406.256.3344.

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 USP is a colorless, non-flammable gas with a slightly sweet odor and taste. Its chemical name is nitrous oxide, and it has a CAS number of 10024-97-2.

Uses and Indications

This drug is indicated for use in medical settings where Nitrous Oxide is deemed appropriate for analgesia or sedation. Administration of Nitrous Oxide may be hazardous or contraindicated; therefore, it is to be used only by or under the supervision of a licensed practitioner who possesses experience in the use and administration of Nitrous Oxide. The 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.

Limitations of Use: There are no specific teratogenic or nonteratogenic effects associated with this drug; however, practitioners should exercise caution and adhere to established guidelines when considering its use in various patient populations.

Dosage and Administration

For administration via the respiratory route, Nitrous Oxide should only be utilized by or under the supervision of a licensed practitioner who possesses experience in its use and administration. It is imperative that the practitioner is well-versed in the indications, effects, dosages, methods, and frequency and duration of administration associated with Nitrous Oxide.

Healthcare professionals must ensure that they are familiar with the appropriate dosing ranges and intervals specific to the clinical scenario. Proper preparation and administration techniques should be adhered to, ensuring patient safety and optimal therapeutic outcomes.

Contraindications

Administration of Nitrous Oxide is contraindicated in the following situations:

  • Use is restricted to licensed practitioners experienced in its administration, as improper use may pose significant hazards.

  • Handling of Nitrous Oxide should not occur until all safety precautions have been thoroughly read and understood to prevent potential risks.

  • Inhalation of the gas should be avoided to mitigate respiratory complications.

  • Direct contact with eyes, skin, or clothing is contraindicated to prevent irritation or injury.

Warnings and Precautions

Administration of Nitrous Oxide is associated with significant risks and should only be performed by or under the supervision of a licensed practitioner who possesses expertise in its use. This practitioner must be knowledgeable about the indications, effects, dosages, methods, frequency and duration of administration, as well as the potential hazards, contraindications, side effects, and necessary precautions.

Hazardous Properties Nitrous Oxide is classified as an oxidizer and poses a danger of causing or intensifying fire. It is stored as a gas under pressure, which may lead to explosion if subjected to heat. Additionally, exposure to Nitrous Oxide may result in drowsiness or dizziness, and it has the potential to displace oxygen, leading to rapid suffocation. Frostbite may occur upon contact with the gas.

Safety Precautions Prior to handling Nitrous Oxide, it is imperative that all safety precautions are thoroughly read and understood. The gas should be stored away from clothing and other combustible materials, and care must be taken to keep valves and fittings free from grease and oil. Users should avoid inhaling the gas and ensure that it does not come into contact with eyes, skin, or clothing. Nitrous Oxide should only be used and stored outdoors or in well-ventilated areas. In the event of a fire, efforts should be made to stop the leak if it is safe to do so. A backflow preventive device should be utilized in the piping, and only equipment made from compatible materials and rated for cylinder pressure should be employed. Equipment must also be cleaned for oxygen service. Valves should be opened slowly and closed after each use or when empty. Protection from sunlight is necessary when ambient temperatures exceed 52°C (125°F). It is essential to read and follow the Safety Data Sheet (SDS) before use.

First Aid Measures In the event of inhalation, the affected individual should be removed to fresh air and kept comfortable for breathing. If symptoms persist, it is crucial to contact a poison center or a physician. For skin exposure, any frostbite should be treated by thawing the affected areas with lukewarm water; rubbing the area is not advised. Immediate medical advice or attention should be sought.

Emergency Instructions If any adverse effects are experienced, including those from skin contact, it is vital to seek immediate medical advice or attention. In cases of inhalation, contacting a poison center or physician is strongly recommended if the individual feels unwell.

Side Effects

Patients receiving Nitrous Oxide may experience a range of adverse reactions, which can vary in seriousness and frequency.

Serious adverse reactions include the potential for drowsiness or dizziness, which may impair the ability to perform tasks requiring alertness. Additionally, Nitrous Oxide is classified as an oxidizer and may cause or intensify fire hazards. There is also a risk of rapid suffocation due to oxygen displacement, which necessitates careful monitoring during administration. Frostbite is another serious concern, particularly if the gas comes into contact with skin.

Common adverse reactions associated with the use of Nitrous Oxide include the potential for hazardous situations, as its administration may be contraindicated in certain patients. It is crucial that Nitrous Oxide is used only by or under the supervision of a licensed practitioner experienced in its administration.

Patients are advised to avoid inhaling the gas and to prevent contact with eyes, skin, or clothing. In the event of inhalation, individuals should be removed to fresh air and kept comfortable for breathing. If symptoms persist, it is important to contact a poison center or healthcare provider. For skin exposure, affected areas should be thawed with lukewarm water without rubbing, and immediate medical advice should be sought.

Overall, the administration of Nitrous Oxide requires careful consideration of these adverse reactions to ensure patient safety.

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

Pediatric use of Nitrous Oxide has not been specifically addressed in the available data. There are no recommended age ranges, dosing differences, safety concerns, or special precautions for pediatric patients mentioned in the prescribing information. Therefore, healthcare professionals should exercise caution when considering the use of Nitrous Oxide in children, as the efficacy and safety profile in this population remain undefined.

Geriatric Use

Elderly patients do not have specific geriatric use considerations, dosage adjustments, safety concerns, or special precautions associated with the use of Nitrous Oxide. Therefore, healthcare providers may administer this agent to geriatric patients without the need for modifications based on age. However, as with all medications, it is advisable to monitor elderly patients for any potential adverse effects or unique responses during treatment.

Pregnancy

Administration of Nitrous Oxide is contraindicated in pregnancy due to potential risks to fetal outcomes. The use of Nitrous Oxide should be limited to licensed practitioners who are experienced in its administration, as improper use may pose significant hazards. Additionally, it is important to note that Nitrous Oxide is an oxidizer and may cause or intensify fire, further emphasizing the need for caution in its use. Pregnant patients should be advised against exposure to Nitrous Oxide to mitigate any potential risks to both maternal and fetal health.

Lactation

There are no specific warnings or recommendations regarding the use of Nitrous Oxide in lactating mothers. Additionally, there is no information available about the potential for excretion of Nitrous Oxide in breast milk or any associated risks to breastfed infants.

Renal Impairment

Patients with renal impairment have not been specifically addressed in the available prescribing information. There are no dosage adjustments, special monitoring requirements, or safety considerations outlined for individuals with reduced kidney function. Healthcare professionals should exercise caution and consider the lack of data when prescribing to this patient 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 clinical judgment when considering the use of Nitrous Oxide in patients with compromised liver function, as individual patient factors may influence treatment decisions.

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 significantly depending on the substance involved and the individual patient’s characteristics. Symptoms may include, but are not limited to, altered mental status, cardiovascular instability, respiratory distress, and gastrointestinal disturbances.

In the event of suspected overdosage, immediate assessment of the patient's condition is crucial. Recommended actions include:

  1. Assessment and Monitoring: Conduct a thorough evaluation of the patient's vital signs and mental status. Continuous monitoring may be necessary to detect any deterioration in the patient's condition.

  2. Supportive Care: Initiate supportive measures as required, which may include airway management, oxygen supplementation, intravenous fluids, and other interventions tailored to the patient's needs.

  3. Toxicology Consultation: Consider consulting a poison control center or a toxicologist for guidance on specific management strategies, including the use of antidotes if applicable.

  4. Documentation and Reporting: Document the incident thoroughly, including the substance involved, estimated dose, time of exposure, and any interventions performed. Reporting the case to relevant health authorities may also be warranted.

Healthcare professionals are encouraged to familiarize themselves with the specific management protocols for the substances they encounter, as well as to stay updated on the latest guidelines and recommendations for overdose management.

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

No postmarketing experience details are available in the provided data.

Patient Counseling

Healthcare providers should advise patients that the administration of Nitrous Oxide may pose hazards and is contraindicated in certain situations. It is essential that this substance is used only by or under the supervision of a licensed practitioner who is experienced in its use and familiar with its indications, effects, dosages, methods, frequency, duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

Patients should be made aware of the potential dangers associated with Nitrous Oxide, including its ability to cause or intensify fire, as it is classified as an oxidizer. They should understand that the gas is stored under pressure and may explode if subjected to heat. Additionally, patients should be informed that Nitrous Oxide may cause drowsiness or dizziness, and it can displace oxygen, leading to rapid suffocation. Frostbite is also a risk if the gas comes into contact with skin.

It is crucial for patients to read and understand all safety precautions before handling Nitrous Oxide. They should be instructed to keep and store the gas away from clothing and other combustible materials, ensuring that valves and fittings remain free from grease and oil. Patients should avoid breathing the gas and should take care to prevent contact with eyes, skin, or clothing. The use and storage of Nitrous Oxide should only occur outdoors or in well-ventilated areas.

In the event of a fire, patients should be advised to stop the leak if it is safe to do so. They should use a backflow preventive device in the piping and ensure that only equipment made of compatible materials and rated for cylinder pressure is utilized. Equipment must be cleaned for oxygen service, and patients should open the valve slowly and close it after each use or when empty. Protection from sunlight is necessary when ambient temperatures exceed 52°C (125°F).

Patients should be encouraged to read and follow the Safety Data Sheet (SDS) prior to use. In case of an emergency, if Nitrous Oxide is inhaled, patients should be removed to fresh air and kept comfortable for breathing, and they should seek medical attention if they feel unwell. If the gas comes into contact with skin, patients should thaw any frosted areas with lukewarm water without rubbing the affected area and should seek immediate medical advice or attention.

Storage and Handling

The product is supplied in configurations that ensure safe handling and storage. It is essential to keep and store the product away from clothing and other combustible materials to prevent fire hazards. Valves and fittings must be maintained free from grease and oil to ensure proper functioning and safety.

For optimal use, the product should only be utilized and stored outdoors or in a well-ventilated area. It is crucial to protect the product from direct sunlight when the ambient temperature exceeds 52°C (125°F) to prevent degradation or potential hazards.

When operating the valve, it should be opened slowly to avoid sudden pressure changes. Additionally, the valve must be closed securely after each use and when the product is empty to maintain safety and integrity.

Additional Clinical Information

The route of administration for the product is via respiratory inhalation. Clinicians should counsel patients that the administration of Nitrous Oxide may pose hazards or be contraindicated. It is essential that it be used only by or under the supervision of a licensed practitioner experienced in its use, who is knowledgeable about its indications, effects, dosages, methods, frequency, duration, hazards, contraindications, side effects, and necessary precautions.

Patients must be informed to read and understand all safety precautions before handling the product. It should be stored away from clothing and combustible materials, and valves and fittings must be kept free from grease and oil. Patients should avoid breathing the gas and prevent contact with eyes, skin, or clothing. The product should only be used outdoors or in well-ventilated areas. In case of fire, individuals should stop the leak if it is safe to do so and utilize a backflow preventive device in the piping. Equipment used must be compatible with the materials of construction and rated for cylinder pressure, and it should be cleaned for oxygen service. Valves should be opened slowly, closed after each use, and protected from sunlight when ambient temperatures exceed 52°C (125°F). It is crucial to read and follow the Safety Data Sheet (SDS) prior to use.

FDA Insert (PDF)

This document is the official FDA-approved prescribing information for Nitrous Oxide as submitted by American Welding & Gas. 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 (NDA205704) 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.