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NITHIODOTE (CO-PACKAGED SODIUM NITRITE 30 MG / ML SOLUTION FOR INJECTION, SODIUM THIOSULFATE 250 MG / ML SOLUTION FOR INJECTION - Patient leaflet, side effects, dosage

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Sources: Original (products.mhra.gov.uk)

Patient leaflet - NITHIODOTE (CO-PACKAGED SODIUM NITRITE 30 MG / ML SOLUTION FOR INJECTION, SODIUM THIOSULFATE 250 MG / ML SOLUTION FOR INJECTION

NITHIODOTE Solution for Injection

Read all of this leaflet carefully

This leaflet contains information about Nithiodote, which will have already been given to you by injection into one of your veins.

  • Although you will not be taking this medicine yourself, this leaflet contains important information to help you understand how Sodium Thiosulfate is used.
  • Keep this leaflet. You may need to read it again.
  • If you have any further questions, ask your doctor or nurse.
  • If you get any side effects, talk to your doctor or nurse. This includes any possible side effects not listed in this leaflet. See

In this leaflet

  • 1. What is Nithiodote and what it is used for

  • 2. Before you are given Nithiodote

  • 3. How Nithiodote is given

  • 4. Possible side effects

  • 5. How to store Nithiodote

  • 6. Further information

1. what nithiodote is and what it is used for

Nithiodote is a kit that contains two separate medications: Sodium Nitrite Solution for Injection and Sodium Thiosulfate Solution for Injection.

Nithiodote is used as an antidote for cyanide poisoning. Cyanide poisoning is a condition that develops when you inhale, touch, or swallow cyanide. Cyanide is a poisonous chemical that prevents your body from absorbing oxygen. The lack of oxygen can damage your organs and be life-threatening.

  • 2. Before you are given Nithiodote

Take special care with Nithiodote if you:

  • are pregnant or breast-feeding (See ;
  • have low blood pressure;
  • have a condition called anaemia (This is a reduction in number of red blood cells in the bloodstream. Anaemia can make the skin appear pale and can cause weakness or breathlessness);
  • suffer from Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency (This may result in anaemia.);
  • have a history of elevated levels of methaemoglobin (This is a modified form of haemoglobin that reduces the amount of oxygen in the bloodstream and can cause weakness or breathlessness.);
  • have inhaled smoke from a fire;
  • have had allergic reactions to sulfites.

You will be monitored during use with Nithiodote, and the dose of the medication will be adjusted if necessary.

Sodium thiosulfate in Nithiodote contains approximately 3.6 g of sodium per dose and 115 mg of potassium per dose.

Sodium thiosulfate in Nithiodote contains 140 mg of boric acid per dose. If you are pregnant, talk to your doctor before taking this medicine as it contains boron, which may be harmful to your baby.

Using other medicines

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

The following medicines have side effects that are similar to the side effects that may occur with Nithiodote.

  • Medicines used to treat high blood pressure such as beta blockers, diuretics, and nitrates;
  • Medicines that can increase methaemoglobin levels such as procaine (used as a local anesthetic) and nitroprusside (used to reduce blood pressure).

It may be necessary for your doctor to adjust the dose of Sodium Nitrite or one of your other medications.

Nithiodote should not be co-administered with hydroxocobalamin in the same injection line.

Pregnancy and breast-feeding

Nithiodote should not be used during pregnancy or while breast-feeding. Tell your doctor right away if you are pregnant or breast feeding.

  • 3. How Nithiodote will be given

Nithiodote will be given by injection into a vein by a doctor or nurse. Your doctor will choose the dose that is right for you.

If signs of cyanide poisoning reappear, your doctor will decide if you should receive more Nithiodote.

If you have any further questions on the use of Nithiodote, ask your doctor or nurse.

4. possible side effects

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

The side effects of sodium nitrite include:

  • Cardiovascular: reduced blood pressure, rapid heart rate, irregular pulse, transient loss of consciousness, palpitations
  • Hematological: blood disorder resulting in oxygen deprivation in tissues

(methaemoglobi­nemia)

  • Central nervous system: headache, dizziness, blurred vision, seizures, confusion, coma
  • Psychiatric: anxiety
  • Gastrointestinal: nausea, vomiting, abdominal pain
  • Skin: urticaria (skin rash notable for pale, red, raised, itchy bumps)
  • Body as a whole: sweating, light headedness, injection site tingling, fatigue, weakness, generalized numbness and tingling, blue or purple coloured skin

The side effects of sodium thiosulfate include:

  • Cardiovascular: reduced blood pressure
  • Hematological: cuts take longer to stop bleeding than normal
  • Central nervous system: headache, disorientation
  • Gastrointestinal: nausea, vomiting
  • Body as a whole: salty taste in mouth, warm sensation over body

5. how to store nithiodote

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

Do not use this medicine after the expiry date which is stated on the vial label and carton. The expiry date refers to the last day of that month.

Store below 25°C. Store in the outer carton in order to protect from light.

Sodium nitrite and sodium thiosulfate solutions for injection must be clear and colourless. If particulate matter or discolouration is present, the solution must not be used and should be discarded.

For single use only. Sodium nitrite and sodium thiosulfate solutions should be used immediately after opening. Discard any unused portions.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.

6. contents of the pack and other information

What Nithiodote contains

Each 10 mL vial of Sodium Nitrite

Solution for Injection contains 300 mg of the active ingredient sodium nitrite (30 mg/mL).

The other ingredient is water for injections.

Each 50 mL vial of Sodium Thiosulfate Solution for Injection contains 12.5 g of the active ingredient sodium thiosulfate (250 mg/mL). The other ingredients are boric acid, potassium chloride, and water for injections. Sodium hydroxide may also be used to adjust the pH of the solution.

What Nithiodote looks like and contents of the pack

Sodium nitrite and sodium thiosulfate solutions must be clear and colourless. If particulate matter or discolouration is present, the solution must not be used and should be discarded.

Each carton of Nithiodote contains one 10 mL glass vial of Sodium Nitrite Solution for Injection and one 50 mL glass vial of Sodium Thiosulfate Solution for Injection.

Marketing Authorisation Holder

Hope Pharmaceuticals, Ltd.

120 Baker Street

London W1U 6TU

United Kingdom

Manufacturer Responsible for Batch Release

GMP Manufacturing Ltd.

Hull HU9 5NP

United Kingdom

This medicinal product is authorised in the Member States of the EEA under the following names:

Ireland

Nithiodote Solution for Injection

United Kingdom

Nithiodote (CoPackaged Sodium Nitrite 30mg/ml Solution for Injection and Sodium Thiosulfate 250mg/ml Solution for Injection)

This leaflet was last revised on 08/2020.

3

Sources: Original (products.mhra.gov.uk)

Frequently Asked Questions

What is Nithiodote used for?

Nithiodote is used for the treatment of cyanide poisoning, helping to detoxify the body by converting cyanide into a less harmful compound.

How does Nithiodote work in the body?

Nithiodote contains sodium nitrite and sodium thiosulfate, which work together to convert cyanide into thiocyanate, a substance that can be eliminated from the body.

What are the side effects of using Nithiodote?

Common side effects may include headache, dizziness, nausea, and low blood pressure. If you experience severe side effects, contact your healthcare provider immediately.

Can Nithiodote be used in children?

Yes, Nithiodote can be used in children, but the dosage may vary. Always consult a healthcare professional for appropriate dosing.

Is there an age limit for using Nithiodote?

Nithiodote can be administered to adults and children, but specific dosages should be determined by a healthcare professional based on age and weight.

How is Nithiodote administered?

Nithiodote is administered as an injection, typically given intravenously in a clinical setting by a healthcare provider.

What should I do if I miss a dose of Nithiodote?

In cases of cyanide poisoning, missing a dose may not apply; treatment should be given immediately. Always seek emergency medical assistance.

Can I use Nithiodote if I am pregnant or breastfeeding?

Consult your healthcare provider before using Nithiodote if you are pregnant or breastfeeding to understand the potential risks and benefits.

What should I tell my doctor before using Nithiodote?

Inform your doctor about any allergies, medications you are taking, and any medical conditions you have before receiving Nithiodote.

Are there any drug interactions with Nithiodote?

Yes, some medications may interact with Nithiodote. Always discuss your current medications with your healthcare provider before treatment.

How fast does Nithiodote work?

Nithiodote acts quickly to reduce cyanide toxicity. Patients usually respond within minutes after administration in emergency situations.

Can I use Nithiodote for other types of poisoning?

Nithiodote is specifically designed for cyanide poisoning. It is not effective for other types of poisoning; consult a medical professional for appropriate treatments.

What should I do if I have an allergic reaction to Nithiodote?

If you experience symptoms of an allergic reaction such as rash, itching, or difficulty breathing after receiving Nithiodote, seek immediate medical attention.

Is it safe to use expired Nithiodote?

No, expired medications may not be effective and could pose risks. Always check expiration dates and dispose of expired medications properly.

Where should I store Nithiodote?

Nithiodote should be stored in a cool, dry place away from light. Follow storage instructions provided by your healthcare provider or pharmacist.

Can I administer Nithiodote at home?

Nithiodote should only be administered by qualified healthcare professionals in a medical setting due to its critical use in emergencies.

Does insurance cover the cost of Nithiodote treatment?

Coverage may vary based on your insurance plan. Contact your insurance provider to check if Nithiodote is covered under your plan.

What happens if I overdose on Nithiodote?

An overdose of Nithiodote can cause serious side effects. Seek emergency medical attention immediately if an overdose is suspected.

Are there alternatives to Nithiodote for treating cyanide poisoning?

Other treatments exist for cyanide poisoning; however, their effectiveness varies. It’s vital to consult a medical professional for proper evaluation and treatment options.

What are some additional resources for understanding cyanide poisoning and its treatment with Nithiodote?

You can find information from reputable health organizations such as the Centers for Disease Control and Prevention (CDC) or the National Institutes of Health (NIH) regarding cyanide poisoning and treatments like Nithiodote.