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This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER

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This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

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Introduction

Package Leaflet: Information for the User

Nitrous Oxide Medicinal Carburos Metálicos, 98.0% V/V, Liquid Medical Gas, in Fixed Cryogenic Container

Nitrous oxide

Read the entire package leaflet carefully before starting to use the medicine, as it contains important information for you.Keep this package leaflet, as you may need to read it again.

  • Keep this package leaflet, as you may need to read it again.
  • If you have any questions, consult your doctor or pharmacist.
  • If you experience side effects, consult your doctor or pharmacist, even if they are not listed in this package leaflet. See section 4.

Contents of the Package Leaflet:

  1. What is Nitrous Oxide Medicinal and what is it used for
  2. Before starting treatment with Nitrous Oxide Medicinal
  3. How to use Nitrous Oxide Medicinal
  4. Possible side effects
  5. Storage of Nitrous Oxide Medicinal

Contents of the packaging and additional information

1. What is Nitrous Oxide Medicinal and what is it used for

Nitrous Oxide Medicinal Carburos Metálicos is a liquid medical gas.

What is it used for?

Treatment with nitrous oxide is indicated in the following cases:

  • Adjuvant to general anesthesia, in combination with all anesthetic agents administered intravenously or by inhalation.
  • Adjuvant to analgesia in the operating room or delivery room.
Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

2. What you need to know before starting treatment with Nitrous Oxide Medicinal Carburos Metálicos

Do not useNitrous Oxide Medicinal Carburos Metálicos

  • If you need ventilation with pure oxygen.
  • If you have undrained air embolisms, particularly intracranial or pneumothorax, bullous emphysema.
  • Do not use for more than 24 hours in a row.

Warnings and Precautions

  • If you have heart failure, monitor your blood pressure to avoid hypotension.
  • If you are going to undergo ear surgery or surgery in adjacent air-filled areas.

Use ofNitrous Oxide Medicinalwith other medicines

Tell your doctor if you are taking, or have recently taken, any other medicines, including those obtained without a prescription.

Nitrous oxide enhances the hypnotic effects of intravenous or inhaled anesthetics (thiopental, benzodiazepines, morphinics, halogenated), so the dosage of these should be reduced.

You should also inform your doctor if you are taking medicines that contain methotrexate (e.g., for rheumatoid arthritis).

Pregnancy and Breastfeeding and Fertility

Pregnancy

During pregnancy, it is recommended not to exceed a concentration of 50% of nitrous oxide in the inhaled mixture.

Obstetric Anesthesia:

Due to the rapid passage through the fetoplacental barrier, it is recommended to interrupt the administration of nitrous oxide if the time between the induction of anesthesia and the extraction of the fetus exceeds 20 minutes.

Avoid using nitrous oxide in case of fetal distress.

Obstetric Analgesia:

The use of nitrous oxide for this indication can only be performed if a safety flowmeter is available that prevents the administration of nitrous oxide at a concentration greater than 50%.

Breastfeeding

Consult your doctor before using the medicine.

Driving and Using Machines

It is recommended not to drive vehicles and not to use machines during the 24 hours following anesthesia with nitrous oxide.

3. How to use Nitrous Oxide Medicinal Carburos Metálicos

Nitrous oxide medicinal is intended for exclusive hospital use.

Nitrous oxide should only be administered in the operating room or delivery room.

The doctor will determine the necessary dose of nitrous oxide and it will be administered through a system suitable for your needs, ensuring the supply of the correct amount of oxygen.

If you use more Nitrous Oxide Medicinal Carburos Metálicos than you should:

In case of overdose, there is a risk of cyanosis and hypoxia. The administration of Nitrous Oxide Medicinal should be interrupted and the patient ventilated (air and oxygen).

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

4. Possible Side Effects

Like all medicines, this medicine can cause side effects, although not everyone gets them.

The assessment of side effects is based on the following frequencies:

Very common: may affect more than 1 in 10 people

Common: may affect up to 1 in 10 people

Uncommon: may affect up to 1 in 100 people

Rare: may affect up to 1 in 1,000 people

Very rare: may affect up to 1 in 10,000 people

Unknown: cannot be estimated from the available data

Very Common

  • Nausea and vomiting.
  • Hypoxia, for several minutes after the end of nitrous oxide administration.

Common

  • Middle ear disorders.
  • Temporary increase in pressure and/or volume of the body's air cavities, normal or pathological.
  • Ocular hypertension.

Uncommon

  • Hallucinations (Psychodysleptic effects may occur in the absence of combination with another anesthetic).

Rare

  • Paraparesis.

Very Rare

  • Severe hematological disorders (megaloblastic anemia, agranulocytopenia) have been described for treatments lasting more than 24 hours.
  • Arrhythmia, Heart Failure.
  • Epilepsy, increased intracranial pressure.
  • Psychotic disorder, confusion, anxiety, euphoric mood.
  • Pneumothorax.
  • Hypotension.

Unknown

  • Myelopathy, subacute combined degeneration of the spinal cord, polyneuropathy, generalized seizures.
  • Addiction.

Reporting Side Effects

If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this package leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: www.notificaRAM.es. By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storage of Nitrous Oxide Medicinal Carburos Metálicos

Keep this medicine out of the sight and reach of children.

Do not use Nitrous Oxide Medicinal Carburos Metálicos after the expiration date.

Fixed cryogenic containers:

  • Must be installed outdoors in a clean area, without flammable materials, reserved for the storage of medicinal gases.
  • It is forbidden to smoke, grease equipment, and make fire in the area where the fixed cryogenic containers are located.
  • Do not park in the area of the fixed cryogenic containers.
  • Monitor the risk of asphyxiation.
  • Fixed cryogenic containers must be protected from shock hazards, particularly filling, emptying, and safety elements (valves, manometers), heat sources or ignition, temperatures above 50°C, and combustible materials.
  • The pressure inside the distribution pipelines from the fixed cryogenic container must not exceed 10 bar.

6. Contents of the Packaging and Additional Information

Composition of Nitrous Oxide Medicinal Carburos Metálicos

The active ingredient is nitrous oxide. The concentration is greater than 98.0% V/V.

It does not contain other excipients.

Appearance of the Product and Contents of the Packaging

Fixed cryogenic containers have different average capacities: 3000, 6000, and 10000 liters.

Marketing Authorization Holder and Manufacturer

S.E. de CARBUROS METÁLICOS, S.A.

Avda. de la Fama, 1

08940 Cornellà de Llobregat,

Spain

Manufacturer

S.E. de CARBUROS METÁLICOS, S.A.

Ctra. Pobla a Tarragona, km 2

43140 – La Pobla de Mafumet, Tarragona

Spain

This package leaflet was approved in: October 2023

Detailed information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es

………………………………………………………………………………………………………………..

This information is intended only for healthcare professionals:

Nitrous oxide is reserved for exclusive medical use.

Nitrous oxide medicinal must be used exclusively in a mixture with medical oxygen, the oxygen concentration (FiO2) should never be less than 21%.

To avoid accidents, the following guidelines must be respected:

  • The projection of liquid could cause severe cryogenic burns (very cold). In case of burns, rinse abundantly with water.
  • Ventilate if possible the place of use.
  • Check the good condition of the materials before use.
  • Perform any manipulation of nitrous oxide containers wearing clean gloves adapted to this use and without grease, and protective glasses.
  • Never touch the cold or frosted parts of the material.
  • Handle the material with clean and grease-free hands.
  • Use a specific connector for nitrous oxide.
  • Use connection hoses to wall outlets provided with specific connections for nitrous oxide medicinal.
  • Do not use an intermediate connector that allows connecting two devices that do not fit.
  • Check beforehand the compatibility of materials in contact with nitrous oxide medicinal, in particular use connection gaskets to the manoreducer provided for this gas. Check the condition of the gaskets.
  • Do not smoke, do not approach a flame, and do not grease.

IMPORTANT:

  • Never introduce this gas into a device that may be suspected of containing combustible bodies, particularly fatty bodies.
  • Never clean with combustible products, particularly fatty bodies, the containers that contain this gas, valves, gaskets, closing devices, as well as circuits.
  • Do not apply greasy substances (vaseline, ointments, etc.) to the face of patients.
  • Do not use aerosol generators (lacquers, deodorants, etc.), solvents (alcohol, gasoline, etc.) on the material or in its proximity.
  • When the ambient temperature is low, the flow may decrease, even interrupt, due to insufficient pressure.
  • Avoid using nitrous oxide medicinal at a temperature below 0°C to avoid a drop in pressure in case of intensive use.
  • Never use nitrous oxide medicinal for tightness tests, for powering pneumatic tools, and for blowing pipes.
  • The average exposure limit value (for 8 hours) to nitrous oxide is set at 25 ppm for exposure of personnel.

Perform systematic ventilation of the place of use, evacuating the exhaled gases to the outside and avoiding places where they could accumulate. It is convenient, before any use, to ensure the possibility of evacuating gases in case of an accident or unexpected leak.

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Discuss questions about NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

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General medicine 7 years exp.

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Pain: how he can help

  • Chronic pain (more than 3 months
  • Migraine and recurrent or high-intensity headaches
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  • Frequent respiratory infections (cold, flu, persistent cough)
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What the consultation is like
 Each session lasts up to 30 minutes. We review symptoms, medical history, medications and any tests you provide, and you finish the consultation with a clear treatment plan, defined next steps, and criteria to understand when follow-up may be needed. If warning signs are detected, he will clearly advise whether you need in-person care or urgent medical attention.

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Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

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Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

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Nuno Tavares Lopes

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Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
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Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

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Rita Isabel Calero Garcia

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Dr. Rita Isabel Calero Garcia is a physician with extensive experience in emergency medical care, general medicine, and healthcare assistance in various clinical and out-of-hospital settings.

She currently works as a physician at the Canary Islands Emergency Service (Servicio de Urgencias Canario – SUC), where she is responsible for the assessment and care of patients in medical emergency situations, performing the initial diagnosis, patient stabilization, and coordination with hospital services when necessary.

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She has also worked as a physician in a mobile ICU unit, providing medical assistance in out-of-hospital emergencies, treating critical patients and participating in medicalized patient transport.

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Dr Daniel Cichi is a family medicine doctor with over 20 years of clinical experience. He provides online consultations for adults, supporting patients with acute symptoms, chronic conditions, and everyday health concerns that require timely medical guidance. His background includes work in emergency care, ambulance services, and family medicine, which allows him to assess symptoms quickly, identify warning signs, and help patients choose the safest next steps – whether that means home care, treatment adjustment, or in-person evaluation. Patients commonly consult Dr Daniel Cichi for: 

  • acute symptoms: fever, infections, flu-like illness, cough, sore throat, shortness of breath;
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  • digestive problems: abdominal pain, nausea, diarrhoea, constipation, reflux;
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  • muscle, joint, and back pain, minor injuries, post-traumatic symptoms;
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Dr. Hocine Lokchiri is a French consultant with over 20 years of experience in General and Emergency Medicine. He works with adults and children, helping patients with urgent symptoms, infections, sudden health changes and everyday medical concerns that require timely evaluation. His background includes clinical practice in France, Switzerland and the United Arab Emirates, which allows him to navigate different healthcare systems and manage a wide range of conditions with confidence. Patients value his calm, structured approach, clear explanations and evidence-based decision-making.

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Many patients reach out when symptoms appear suddenly and cause concern, when a child becomes unwell unexpectedly, when a rash changes or spreads, or when it’s unclear whether an in-person examination is necessary. His emergency medicine background is particularly valuable online, helping patients understand risk levels, identify warning signs and choose safe next steps.

Some situations are not suitable for online care. If a patient has loss of consciousness, severe chest pain, uncontrolled bleeding, seizures, major trauma or symptoms suggesting a stroke or heart attack, he will advise seeking immediate local emergency services. This improves safety and ensures patients receive the right level of care.

Dr. Lokchiri’s professional training includes:

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He is an active member of several professional organisations, including the French Society of Emergency Medicine (SFMU), the French Association for Emergency Physicians (AMUF) and the Swiss Society of Emergency and Rescue Medicine (SGNOR). In consultations, he works with clarity and precision, helping patients understand their symptoms, possible risks and the safest treatment options.

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Frequently Asked Questions

Is a prescription required for NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER?

NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.

What is the active substance in NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER?

The active ingredient in NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER is nitrous oxide. This information helps identify medicines with the same composition but different brand names.

Who manufactures NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER?

NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER is manufactured by Sociedad Española De Carburos Metalicos S.A.. Pharmacy brands and packaging may differ depending on the distributor.

Which doctors can assess the use of NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER online?

Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.

How to buy NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER in Spain?

Spain has a well-developed healthcare infrastructure across major cities such as Madrid, Barcelona, Valencia, and Seville. Pharmacies are widely available and operate under strict regulations, ensuring access to prescribed medications.

You can buy NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER in Madrid, Barcelona, Seville, or Valencia at any local pharmacy with a valid prescription.

To obtain a prescription, you can use Oladoctor:

What are the alternatives to NITROUS OXIDE MEDICAL METAL CARBIDES 98.0% V/V LIQUEFIED MEDICINAL GAS IN FIXED CRYOGENIC CONTAINER?

Other medicines with the same active substance (nitrous oxide) include NITROUS OXIDE MEDICINAL AIR LIQUIDE 98% V/V MEDICINAL CRYOGENIC GAS, NITROUS OXIDE FOR MEDICAL USE, 98.0% V/V LIQUEFIED MEDICINAL GAS IN GAS CYLINDER, NITROUS OXIDE MEDICINAL GAS AIR LIQUIDE 98.0 V/V LIQUEFIED MEDICINAL GAS IN GAS CYLINDER. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.

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