Nitrous oxide

Description

UN2201 Nitrous Oxide, Refrigerated Liquid, USP, is a colorless gas with a slightly sweet odor, classified under CAS number 10024-97-2. This compound is a cold, oxidizing liquid and gas that is stored under pressure. It is known to vigorously accelerate combustion and poses significant hazards, including the potential for rapid suffocation and anesthetic effects. Exposure may lead to dizziness, drowsiness, and possible damage to the nervous system and blood cells. Additionally, it is recognized as a reproductive hazard and may cause frostbite upon contact. The threshold limit value (TLV-TWA) is established at 50 parts per million (PPM) as per ACGIH guidelines from 2008. Nitrous oxide is produced through the process of air liquefaction.

Uses and Indications

This drug is indicated for use in specific medical settings where nitrous oxide administration is deemed appropriate. It is intended for administration only by or under the supervision of a licensed practitioner who possesses expertise in the use and administration of nitrous oxide. The 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.

Limitations of use include the recognition of nitrous oxide as a reproductive hazard, necessitating caution in its administration to pregnant individuals or those planning to become pregnant. No nonteratogenic effects have been specified.

Dosage and Administration

Administration of nitrous oxide is to be conducted exclusively by or under the supervision of a licensed practitioner who possesses experience in its use and administration. This practitioner must be well-versed in the indications, effects, dosages, methods, frequency, and duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

Nitrous oxide is administered via the respiratory route through inhalation. It is imperative that practitioners adhere to established guidelines and protocols to ensure safe and effective use. The specific dosage and frequency of administration should be determined based on individual patient needs and clinical judgment, taking into account the potential risks and benefits associated with nitrous oxide therapy.

Contraindications

Administration of nitrous oxide is contraindicated in situations where its use may pose a hazard. It should only be administered by or under the supervision of a licensed practitioner experienced in its use, who is knowledgeable about its indications, effects, dosages, methods, frequency, duration of administration, and associated hazards.

Specific contraindications include:

• Avoid breathing the gas directly.

• Ensure that liquid nitrous oxide does not come into contact with eyes, skin, or clothing.

• Do not drop the equipment or allow it to be subjected to physical stress.

• Avoid walking on or rolling equipment over any spills.

• Close all valves after each use and keep them closed even when the equipment is empty.

• Do not remove the label from the equipment.

Warnings and Precautions

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

Hazards of Nitrous Oxide

Nitrous oxide is classified as a cold, oxidizing liquid and gas under pressure, which poses several dangers. It vigorously accelerates combustion and can lead to rapid suffocation. The anesthetic effects of nitrous oxide may induce dizziness and drowsiness, and there is a risk of damage to the nervous system and blood cells. Additionally, it is recognized as a reproductive hazard and can cause frostbite upon contact with skin or eyes.

General Precautions

To ensure safe handling and administration, the following precautions must be observed:

• Avoid inhalation of the gas and ensure adequate ventilation during use.

• Keep oil, grease, and other combustibles away from the area of use.

• Utilize equipment that has been cleaned for oxygen service and is rated for the cylinder pressure.

• Prevent contact of the liquid with eyes, skin, or clothing.

• Maintain cylinder temperatures below 125°F (52°C).

• Open the valve slowly and ensure it is closed after each use, keeping it closed even when empty.

• Secure the cylinder at all times and install the cap, if provided, when not in use.

• Implement a backflow prevention device in any piping connected to the cylinder.

• Follow the guidelines outlined in the Praxair MSDS form P-4636, Praxair safety booklet P-14-153, and the manufacturer’s operating instructions for the container.

Emergency Procedures

In the event of an emergency, it is crucial to seek immediate medical assistance by calling 1-800-645-4633. If nitrous oxide is inhaled, the individual should be removed to fresh air. If breathing has ceased, artificial respiration should be administered. In cases where breathing is difficult, qualified personnel may provide supplemental oxygen. Immediate medical treatment is necessary for frostbite injuries.

Side Effects

Patients exposed to nitrous oxide may experience a range of adverse reactions, which can be categorized by seriousness and frequency.

Warnings associated with nitrous oxide include significant risks such as the potential for rapid suffocation, anesthetic effects, and damage to the nervous system and blood cells. Additionally, nitrous oxide is recognized as a reproductive hazard and may cause frostbite due to its cold, oxidizing properties when in liquid or gas form under pressure.

Common adverse reactions reported by patients include dizziness and drowsiness. These effects are typically mild but should be monitored closely.

In terms of safety guidelines, the Threshold Limit Value-Time Weighted Average (TLV-TWA) for nitrous oxide is set at 50 parts per million (PPM) as per ACGIH 2008 recommendations. The gas has a slightly sweet odor, which may be noted during exposure.

In the event of inhalation, it is crucial to remove the patient to fresh air immediately. If the patient is not breathing, artificial respiration should be administered. Should breathing difficulties arise, qualified personnel may provide supplemental oxygen. In cases of frostbite, prompt medical treatment is essential.

Drug Interactions

The administration of nitrous oxide is associated with potential hazards and contraindications. It is imperative that nitrous oxide is used exclusively by or under the supervision of a licensed practitioner who possesses expertise in its use and administration. This practitioner should be well-versed in the indications, effects, dosages, methods, frequency, and duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

Due to the risks involved, careful consideration and monitoring are essential when administering nitrous oxide, ensuring that all safety protocols are adhered to in order to mitigate potential adverse effects.

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.

Pediatric Use

Administration of nitrous oxide in pediatric patients may pose hazards or be contraindicated. 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 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 specific to pediatric patients.

Geriatric Use

Administration of nitrous oxide may pose hazards or be contraindicated in elderly patients. Special precautions are warranted when administering nitrous oxide to this population due to their potential increased sensitivity to side effects.

Additionally, consideration should be given to the possibility of reduced kidney function in elderly patients, as this may impact the metabolism and clearance of nitrous oxide. Therefore, it is recommended that nitrous oxide be used under the supervision of a licensed practitioner who has experience in its administration, particularly for geriatric patients. Monitoring and careful assessment of these patients are essential to ensure their safety during treatment.

Pregnancy

The administration of nitrous oxide during pregnancy is associated with potential reproductive hazards. Due to the risks involved, nitrous oxide should only be used by or under the supervision of a licensed practitioner who is experienced in its use and administration. This practitioner must be familiar with the indications, effects, dosages, methods, and frequency and duration of administration, as well as the associated hazards, contraindications, and side effects. Given the potential risks, healthcare professionals are advised to exercise caution and consider alternative options when treating pregnant patients.

Lactation

There are no specific warnings or considerations regarding the use of Nitrous Oxide in lactating mothers or its effects on breastfed infants. Current data does not indicate any known risks associated with the excretion of Nitrous Oxide in breast milk. Therefore, healthcare professionals may consider the use of Nitrous Oxide in lactating mothers without additional precautions.

Renal Impairment

There is no specific information regarding renal impairment, dosage adjustments, special monitoring, or safety considerations for patients with reduced kidney function provided in the drug insert for Nitrous Oxide. Healthcare professionals should exercise caution and consider the lack of data when treating patients with renal impairment.

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

Administration of nitrous oxide carries inherent risks and may be hazardous or contraindicated in certain situations. It is imperative that nitrous oxide is utilized exclusively by or under the supervision of a licensed practitioner. This practitioner must possess experience in the use and administration of nitrous oxide, as well as a comprehensive understanding of its indications, effects, dosages, methods, frequency, duration of administration, and the associated hazards, contraindications, and side effects.

In the event of an overdosage, healthcare professionals should be vigilant for potential symptoms that may arise. The management of overdosage should be conducted by qualified personnel, ensuring that appropriate measures are taken to mitigate any adverse effects. It is essential to follow established protocols for the management of nitrous oxide overdosage, which may include monitoring the patient closely and providing supportive care as necessary.

Nonclinical Toxicology

No specific teratogenic effects have been identified in the available nonclinical studies. However, there is a noted reproductive hazard associated with the compound.

Currently, there are no additional details regarding nonclinical toxicology or specific findings related to animal pharmacology and toxicology.

Postmarketing Experience

Administration of nitrous oxide has been associated with potential hazards and contraindications. It is indicated for use solely by or under the supervision of a licensed practitioner who possesses experience in the use and administration of nitrous oxide. This practitioner should be well-versed in the indications, effects, dosages, methods, frequency, and duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

Patient Counseling

Healthcare providers should advise patients to avoid breathing gas and ensure that the storage and usage of the gas occur in areas with adequate ventilation. It is important to keep oil, grease, and other combustibles away from the gas to prevent fire hazards. Patients should be instructed to use only equipment that has been cleaned for oxygen service and is rated for cylinder pressure.

Patients must be cautioned against allowing liquid to come into contact with their eyes, skin, or clothing. The cylinder temperature should not exceed 125°F (52°C), and when withdrawing liquid, patients should wear a face shield and gloves for protection. They should be reminded not to drop the cylinder and to use a suitable hand truck for moving containers.

Instruct patients to avoid spills and to refrain from walking on or rolling equipment over any spills that may occur. Valves should be closed after each use and kept closed even when the cylinder is empty. It is essential to always secure the cylinder and to use a backflow prevention device in any piping connected to the gas.

Patients should be directed to follow the guidelines outlined in the Praxair MSDS form P-6226, the Praxair safety booklet P-14-153, and the manufacturer's operating instructions for the container. They can obtain Praxair publications from their local supplier for further information.

In the event of inhalation, patients should be removed to fresh air immediately. If the patient is not breathing, artificial respiration should be administered. If breathing is difficult, qualified personnel may provide oxygen, and a physician should be contacted. In cases of frostbite, patients must seek medical treatment without delay.

Healthcare providers should emphasize that the administration of nitrous oxide may be hazardous or contraindicated and should only be performed by or under the supervision of a licensed practitioner experienced in its use. This practitioner should be familiar with the indications, effects, dosages, methods, frequency, duration of administration, as well as the associated hazards, contraindications, side effects, and necessary precautions.

In case of an emergency, patients should be instructed to call 1-800-645-4633 for immediate assistance.

Storage and Handling

The product is supplied in cylinders that must be handled with care to ensure safety and compliance with storage requirements. It is essential to store and use the product in an area with adequate ventilation, while keeping oil, grease, and combustibles at a safe distance. Equipment utilized must be specifically cleaned for oxygen service and rated for cylinder pressure.

The maximum allowable temperature for the cylinder should not exceed 125°F (52°C). When opening the valve, it should be done slowly, and the valve must be closed after each use, remaining closed even when the cylinder is empty. It is crucial to always secure the cylinder and to install the cap, if provided, when the cylinder is not in use.

For piping systems, a backflow prevention device should be employed to prevent any potential hazards. Users are advised to refer to the Praxair Material Safety Data Sheet (MSDS) form P-4636, the Praxair safety booklet P-14-153, and the manufacturer's operating instructions for detailed guidance on the safe handling and use of this container.

Additional Clinical Information

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

FDA Insert (PDF)

This document is the official FDA-approved prescribing information for Nitrous Oxide as submitted by Praxair Distribution Southeast LLC. It includes detailed information about indications, dosage, contraindications, warnings, and clinical pharmacology.

View full prescribing information (PDF)