Consumer medicine information

Epipen

Adrenaline (epinephrine)

BRAND INFORMATION

Brand name

EpiPen

Active ingredient

Adrenaline (epinephrine)

Schedule

S3

 

Consumer medicine information (CMI) leaflet

Please read this leaflet carefully before you start using Epipen.

SUMMARY CMI

EPIPEN®

Consumer Medicine Information (CMI) summary

The full CMI on the next page has more details. If you are worried about using this medicine, speak to your doctor or pharmacist.

1. Why am I using EPIPEN?

EPIPEN contains the active ingredient adrenaline (epinephrine). In some countries, adrenaline is known as epinephrine. EPIPEN is only to be used for the immediate EMERGENCY TREATMENT of a SEVERE ALLERGIC REACTION (also known as ANAPHYLAXIS).

For more information, see Section 1. Why am I using EPIPEN? in the full CMI.

2. What should I know before I use EPIPEN?

EPIPEN is a life-saving treatment in the emergency management of severe allergic reactions. Therefore, it should not be withheld from anyone who is considered to need it. Talk to your doctor if you have any other medical conditions, take any other medicines, or are pregnant or plan to become pregnant or are breastfeeding.

For more information, see Section 2. What should I know before I use EPIPEN? in the full CMI.

3. What if I am taking other medicines?

Some medicines may interfere with EPIPEN and affect how it works.

A list of these medicines is in Section 3. What if I am taking other medicines? in the full CMI.

4. How do I use EPIPEN?

  • EPIPEN delivers one measured dose of adrenaline intended for a person who weighs more than 30 kg. It may be prescribed for a child who weighs from 15 kg up to 30 kg.

More instructions can be found in Section 4. How do I use EPIPEN? in the full CMI.

5. What should I know while using EPIPEN?

Things you should do
  • Remind any doctor, dentist or pharmacist you visit that you are using EPIPEN.
  • Check the expiry date on EPIPEN and request for replacement prior to the expiry date.
Things you should not do
  • Do not use EPIPEN to treat any other medical conditions including other types of shock unless advised by the doctor.
  • Do not use EPIPEN if the solution is cloudy, coloured, contains sediment or the viewing window is obscured.
  • Do not take off the blue safety release until required.
  • Do not touch the orange end on any person or object while you are taking off the blue safety release and/or after you have taken off the blue safety release.
  • Do not inject into hands, feet, ears, nose, buttocks, genital area or into blood vessels.
Driving or using machines
  • Your ability to drive and use machines may be affected by the anaphylactic reaction and possible adverse effects to adrenaline.
Looking after your medicine
  • Keep EPIPEN in a cool dry place below 25°C. Temperature excursions between 15°C to 25°C permitted. Do not refrigerate. Protect EPIPEN from light. Keep EPIPEN in the protective carry tube until required.

For more information, see Section 5. What should I know while using EPIPEN? in the full CMI.

6. Are there any side effects?

Tell your doctor or pharmacist if you experience a fast or noticeable heartbeat, difficulty breathing, chest pain or shortness of breath.

For more information, including what to do if you have any side effects, see Section 6. Are there any side effects? in the full CMI.



FULL CMI

EPIPEN®

Active ingredient(s): adrenaline (epinephrine)


Consumer Medicine Information (CMI)

This leaflet provides important information about using EPIPEN. You should also speak to your doctor or pharmacist if you would like further information or if you have any concerns or questions about using EPIPEN.

Where to find information in this leaflet:

1. Why am I using EPIPEN?
2. What should I know before I use EPIPEN?
3. What if I am taking other medicines?
4. How do I use EPIPEN?
5. What should I know while using EPIPEN?
6. Are there any side effects?
7. Product details

1. Why am I using EPIPEN?

EPIPEN contains the active ingredient adrenaline (epinephrine).

EPIPEN is only to be used for the immediate EMERGENCY TREATMENT of a SEVERE ALLERGIC REACTION (also known as ANAPHYLAXIS). Your doctor or pharmacist will explain what this is like, so that you know when you must use EPIPEN.

EpiPen is used to treat people who have a severe allergic reaction caused by, for example, hypersensitivity to

  • food
  • medicines
  • stinging insects
  • insect bites
  • latex or
  • other allergens, possibly unidentified.

See Section 6. Are there any side effects? for information regarding allergy to sodium metabisulfite.

Avoidance of known allergens is most important in preventing severe allergic reactions.

A severe allergic reaction, otherwise known as anaphylaxis, is overwhelming and life-threatening.

It affects the whole body, in particular the

  • heart and blood circulation.

This may cause, for example, low blood pressure and collapse, or abnormal heart beat or function.

  • air passages and lungs.

This causes difficulty in breathing, with noisy wheezing or gasping, possibly with sneezing and a very runny nose.

  • stomach and bowels.

This may cause nausea, vomiting, diarrhoea and abdominal cramps, often severe.

  • skin (very common).

This causes flushing, itching, skin rash, hives or swelling, which may be widespread or in one part of the body.

  • brain.

There may be fits or confusion due to lack of oxygen.

Usually several parts of the body are affected. The patient feels extremely unwell.

It is important to act quickly to treat a severe allergic reaction.

The adrenaline in EPIPEN treats allergic emergencies. It

  • shrinks abnormally wide blood vessels and
  • makes the heart beat strongly.

This helps improve the very low blood pressure and poor circulation that occur in a severe allergic reaction.

Adrenaline also

  • relaxes the lungs. This eases breathing and lessens wheezing.
  • helps stop
    - swelling, for example, of the face and lips
    - skin rash and/or
    - itching.

The EpiPen Auto-Injector is intended for use in people who have been assessed and advised by their doctor or pharmacist as needing an EpiPen Auto-Injector to treat their severe allergic reaction and who

  • weigh more than 30 kg, and
  • are having a severe allergic reaction.

Note: Selection of the appropriate dosage is determined according to patient body weight.

For a person who weighs from 15 kg up to 30 kg, the doctor or pharmacist may assess their severe allergic reaction as needing the larger dosage of adrenaline as provided by an EpiPen Auto-Injector. (The EpiPen Jr. Auto-Injector delivers a smaller amount of adrenaline).

If you have any questions about this, talk to your doctor or pharmacist.

EpiPen

  • provides convenient first-aid
  • may be self-administered or administered by a carer
  • has a spring-activated, hidden needle
  • automatically injects one pre-measured dose of adrenaline
  • is for single use only.

EpiPen may be prescribed by your doctor. You can also purchase it directly from a pharmacy.

2. What should I know before I use EPIPEN?

The EpiPen Auto-Injector is simple to use. Please read and follow the step-by-step instructions.

Do not remove the blue safety release until you need to use EpiPen and are ready to use it. The safety release stops EpiPen from “firing” or working.

There is no visible needle. This helps overcome fear of injection. The hidden needle is very fine so that the injection does not usually hurt.

Warnings

EpiPen is a life-saving treatment in the emergency management of severe allergic reactions. Therefore, it should not be withheld from anyone who is considered to need it.

The EPIPEN Auto-Injector has a clear “viewing window” so you can see the contents.

Do not use EPIPEN if the contents:

  • are cloudy or
  • are coloured or
  • contain sediment or
  • if the “viewing window” is obscured.

These changes indicate that the effectiveness of the drug product may be decreased.

When the “viewing window” is obscured, the auto-injector has already “fired” and cannot be used again.

Check your EpiPen regularly (see Things you should do in Section 5. What should I know while using EPIPEN?).

Do not use EpiPen

  • after the expiry date on the EpiPen Auto-Injector and carton or
  • if the packaging is torn, doesn't look quite right or shows signs of tampering.

If the EpiPen packaging is damaged or it is past the expiry date, return it to your pharmacist for disposal.

Help in using EpiPen

It is important to know how to use an EpiPen BEFORE a severe allergic reaction causes a medical emergency.

Ask your doctor or pharmacist how you can get an EpiPen Training Device for practice.

An EpiPen Training Device is similar to the real EpiPen. However, the EpiPen Training Device has

  • NO medicine (adrenaline) and
  • NO needle and
  • “fires” quietly and less forcefully.

Ask your doctor or pharmacist to show you how to practice with the EpiPen Training Device. If you practice using the EpiPen Training Device, it will help you to learn how to use the real EpiPen.

It is important to regularly ask your doctor or pharmacist to demonstrate use with an EpiPen Training Device.

EpiPen is effective as emergency treatment of a severe allergic reaction ONLY when used according to the directions in this leaflet.

Give WITH CAUTION to those who have

  • high blood pressure
  • thyroid problems
  • high pressure in the eye (narrow-angle glaucoma).

If you have a thick-subcutaneous fat layer, there is a risk of the adrenaline not reaching the muscle tissue resulting in a suboptimal effect. In such individuals there may be a higher likelihood of needing a second injection with an additional EpiPen.

Take care also when giving EpiPen to those

  • having an anaesthetic

or who have:

  • diabetes
  • heart disease
  • allergy to EpiPen
  • brain damage.

You should tell your doctor or pharmacist if you have:

  • depression, or are on medication for depression
  • thyroid problems, or are on thyroid medication
  • heart disease or high blood pressure
  • diabetes
  • high pressure in the eye (narrow angle glaucoma)
  • asthma
  • ever had an allergic reaction to sodium metabisulfite.

During treatment, you may be at risk of developing certain side effects. It is important you understand these risks and how to monitor for them. See additional information under Section 6. Are there any side effects?

Pregnancy and breastfeeding

Check with your doctor if you are pregnant or intend to become pregnant.

Talk to your doctor if you are breastfeeding or intend to breastfeed.

3. What if I am taking other medicines?

Tell your doctor or pharmacist if you are taking any other medicines, including any medicines, vitamins or supplements that you buy without a prescription from your pharmacy, supermarket or health food shop.

Some medicines may interfere with EPIPEN including:

  • medicines for high blood pressure, especially those known as “beta-blockers”, and other medicines for heart problems
  • medicines for depression, especially “tricyclic antidepressants”
  • thyroid hormone
  • medicines for diabetes
  • antihistamines.

These medicines may affect how well the adrenaline in EpiPen works.

Check with your doctor or pharmacist if you are not sure about what medicines, vitamins or supplements you are taking and if these affect EPIPEN.

4. How do I use EPIPEN?

It is important to know how to use your EpiPen in an emergency (see Help in using EpiPen in Section 2. What should I know before I use EPIPEN?).

Follow carefully all directions given to you by your doctor or pharmacist.

They may differ from the information contained in this leaflet.

If you do not understand the instructions in this leaflet or on the EpiPen Auto-Injector, ask your doctor or pharmacist for help.

How much to use

  • EpiPen Auto-Injector delivers one measured dose of adrenaline. This dose is intended for a person who weighs more than 30 kg and has been assessed by their doctor or pharmacist as needing EpiPen.
  • Your doctor or pharmacist may also advise EPIPEN Auto-Injector for a child who weighs from 15 kg up to 30 kg.

NOTE: Unless otherwise advised by the doctor or pharmacist, EpiPen Jr. Auto-Injector should be used for children who weigh from 15 kg up to 30 kg.

See also Section 1. Why am I using EPIPEN?

When to take EPIPEN

Use EPIPEN immediately if you have signs and symptoms of a severe allergic reaction, as described by your doctor or pharmacist. Symptoms do vary. However, the symptoms are likely to include:

  • collapse
  • difficulty in breathing
  • wheezing
  • swelling, especially of the face, lips, tongue or throat
  • flushing of the face
  • irregular or faint pulse
  • vomiting, diarrhoea, stomach cramps
  • skin rash, hives
  • itching.

How to use EPIPEN

General

  • Grip only the mid-section of the EpiPen Auto-Injector. Avoid touching either end, except when you remove the blue safety release. The blue safety release stops the EpiPen from “firing” or working.
  • Never place thumb, fingers or hand over the orange end as this contains the needle.
  • Always point the orange end (which holds the needle) away from any part of any body, except the planned injection site. This is usually the thigh of the person who has the severe allergic reaction.
  • Always hold the leg firmly during injection especially in people who are uncooperative and kick or move during an injection. This will reduce the risk of injection related injuries.
  • Keep EpiPen away from the face and eyes.
  • Never inject EpiPen into the buttock.

Carefully follow the step-by-step directions to make the EpiPen work properly.

Step 1

Flip open the yellow cap on the protective carry tube. Carefully tip and slide the EpiPen Auto-Injector out of the carry tube. Never place thumb, fingers or hand over the orange end as this contains the needle. Check the contents of the EpiPen Auto-Injector through the “viewing window”. Make sure the solution is clear, colourless and sediment-free. If the “viewing window” is obscured, the EpiPen has already “fired” and cannot be used again.

Step 2

Make a fist around the EpiPen Auto-Injector, with your thumb nearest to the blue safety release (see FIGURE 1).

Step 3

Activate the EpiPen Auto-Injector by removing the blue safety release with your other hand (also shown in FIGURE 1). This “triggers” the EpiPen. It is now ready to

  • “fire” the needle and
  • inject the medicine through the needle into the thigh muscle.

After you remove the blue safety release do not touch or place thumb, fingers or hand over the orange end as this contains the needle.

Step 4

Hold the EpiPen Auto-Injector at a 90° angle (right angle) to the outer part of the thigh. Hold the orange end about 5cm away from the thigh (see FIGURE 2).

Step 5

If you are administering the EpiPen to another person, hold their leg firmly, especially if they are uncooperative.

Push the orange end FIRMLY into the outer mid-thigh until a “click” is heard or felt. Keep pressing the EpiPen Auto-Injector firmly against the thigh for approximately 3 seconds (see FIGURE 3).

NOTE: EpiPen may be used either

  • through clothing, as shown in FIGURE 3, or
  • directly on to skin.

When you press the orange end of the EpiPen Auto-Injector firmly against the thigh, the hidden needle “fires”. It injects the measured dose of adrenaline into the thigh muscle.

Step 6

Carefully take the EpiPen Auto-Injector away from the thigh.

The orange needle cover will extend to cover the needle (see FIGURE 4).

Check the “viewing window” - it should now be obscured. If it isn't, the EpiPen has not “fired” or worked. If the “viewing window” is not obscured, repeat steps 2-6 above.

Step 7

Record the time EPIPEN was given.

Step 8

Seek further medical attention for yourself immediately. Although you have received adrenaline from EpiPen, you may need more medical treatment.

Either

  • Contact your doctor or
  • Call an ambulance (telephone 000 in Australia or 111 in New Zealand). State that adrenaline treatment may be needed.

Step 9

With severe, persistent allergic reactions, repeat injections with an additional EpiPen may be necessary. The EpiPen dose may be repeated every 5 to 15 minutes if symptoms recur or have not subsided.

Do not inject more than two sequential doses of EpiPen unless under medical supervision.

Step 10

Explain to the doctor that you have had EpiPen (intramuscular adrenaline).

Take your used EpiPen Auto-Injector with you.

To avoid injury, follow the used EpiPen disposal instructions below (see When to discard your medicine (as relevant) in Section 5. What should I know while using EPIPEN?).

Additional information about treatment of insect sting allergy

Use EpiPen immediately if you have been stung or bitten by the insect and experience the signs and symptoms as described by your doctor or pharmacist.

If the insect's sting is easily accessible, remove the sting with your fingernails. Do not squeeze, pinch or push the sting deeper into the skin. If available, ice packs or sodium bicarbonate soaks may then be applied to the stung area.

Keep warm, calm, and as still as possible.

If you use too much EPIPEN

Because each EpiPen contains only one dose, overdosage is unlikely. Overdosage may lead to a rise in blood pressure. This may cause bleeding in the brain or fluid in the lung.

If you think that you have used too much EPIPEN, you may need urgent medical attention.

You should immediately:

  • phone the Poisons Information Centre
    (Australia telephone 13 11 26, New Zealand telephone 0800 POISON or 0800 764 766) for advice, or
  • contact your doctor, or
  • go to the Emergency Department at your nearest hospital.

You should do this even if there are no signs of discomfort or poisoning.

5. What should I know while using EPIPEN?

Things you should do

Check what the expiry date is on your EpiPen.

Mark this expiry date on your calendar or diary.

Replace your EpiPen prior to this expiry date.

Also note on your calendar or diary to check the contents of your EpiPen each month. Do this through the “viewing window”.

Make sure the solution is clear, colourless and sediment-free. If not, obtain a new EpiPen immediately.

If the “viewing window” is obscured this means the EpiPen has already “fired” or worked. It cannot be used again. Return it to your doctor or pharmacist for disposal. Obtain a new EpiPen immediately.

The EpiPen Auto-Injector can be damaged and made unusable if it is mishandled.

EpiPen is NOT a toy. Keep it out of reach of children.

Things you should not do

Do not use EpiPen

  • to treat any other medical conditions including other types of shock unless your doctor tells you to.
  • if the solution is brown or contains any particles or cloudiness.
  • in a child who weighs 15 kg to 30 kg unless advised by your doctor or pharmacist. EpiPen Jr. is generally recommended for children who weigh 15 kg to 30 kg. (see also Section 1. Why am I using EPIPEN?).
  • in a child who weighs less than 15 kg. Talk to your doctor or pharmacist if this is the case so that a careful assessment can be made and the appropriate dose selected based on the child's weight and the life-threatening nature of the reaction(s) for which EpiPen is being prescribed.

Do not take off the blue safety release until you need to use EpiPen and are ready to use it.

Remember that the EpiPen Auto-Injector is activated (“triggered”, ready to “fire”) as soon as you take off the blue safety release.

Do not touch the orange end on any person or object while you are taking off the blue safety release and/or after you have taken off the blue safety release.

The orange end holds the hidden needle, ready to “fire” and inject the adrenaline.

After you take off the blue safety release

  • Do not “click” on either end of the EpiPen Auto-Injector. The EpiPen Auto-Injector does not work like a retractable ball-point pen (see How to use EPIPEN - Step 3 in Section 4. How do I use EPIPEN?).
  • Do not bump the EpiPen Auto-Injector until you intentionally push the orange end firmly into the thigh (see How to use EPIPEN - Step 4 in Section 4. How do I use EPIPEN?).
This will help prevent accidental activation of the EpiPen Auto-Injector prior to use.

Do not inject into hands, feet, ears, nose, buttocks, genital area or into a blood vessel.

If this does happen accidentally you must immediately seek medical attention.

Do not inject into the buttock.

Rare cases of serious skin infections have been reported following injection into the buttock. If you develop signs or symptoms of infection, such as persistent redness, warmth, swelling, or tenderness, at the adrenaline injection site you must seek medical attention immediately.

Driving or using machines

Your ability to drive and use machines may be affected by the anaphylactic reaction and possible adverse effects to adrenaline.

Looking after your medicine

Always handle the EPIPEN Auto-Injector carefully, so as not to accidentally activate it or make it “fire” or work.

Keep EpiPen available with the person for whom it is intended.

Keep EpiPen in a cool dry place below 25°C. Temperature excursions between 15°C to 25°C permitted.

Do not place EpiPen in the fridge. Do not leave EpiPen in your car. Extreme temperatures may cause the auto-injector unit to malfunction.

Protect EpiPen from light. Keep EpiPen in the protective carry tube until required.

Store EPIPEN in a cool dry place away from moisture, heat or sunlight; for example, do not store it:

  • in the bathroom or near a sink, or
  • in the car or on window sills.

Heat and dampness can destroy some medicines.

Follow the instructions in the carton on how to take care of your medicine properly.

Keep it where children cannot accidentally reach it.

When to discard your medicine (as relevant)

After the EpiPen Auto-Injector has “fired” or worked, the orange needle cover will extend to cover the exposed needle. After use, continue to handle the EpiPen Auto-Injector safely and with care. Do this even if you think the EpiPen Auto-Injector has not “triggered”, “fired” or worked properly.

You CANNOT RE-USE the EpiPen Auto-Injector even though some adrenaline is left inside it.

After use, do not just throw away the EpiPen Auto-Injector.

  • Do not tamper with the orange needle cover.
  • Do not replace the blue safety release.
  • The used auto-injector with extended needle cover will not fit back into the carry tube.
  • Give your used EpiPen, to the doctor's office or to a hospital. This is for inspection, if required, and also for safe disposal. The used EpiPen, should be placed in a rigid sharps disposal unit.

6. Are there any side effects?

All medicines can have side effects. If you do experience any side effects, most of them are minor and temporary. However, some side effects may need medical attention.

See the information below and, if you need to, ask your doctor or pharmacist if you have any further questions about side effects.

Less serious side effects

Less serious side effectsWhat to do
  • fast or noticeable heartbeat
  • difficulty breathing
  • chest pain
  • shortness of breath
  • dizziness
  • flushing or redness of face and skin.
  • pale skin colour
  • weakness
  • tremor
  • headache
  • throbbing
  • sweating
  • nausea or vomiting
  • sleeplessness
  • coldness
  • hallucinations
  • restlessness
  • anxiety
  • fear
Speak to your doctor if you have any of these less serious side effects and they worry you.
These side effects are minor and short lasting.

Serious side effects

Serious side effectsWhat to do
  • stroke
  • lung problems
  • severe irregular heartbeat
  • disorientation and impaired memory.
More severe side effects can occur occasionally. They are caused by adrenaline stimulating the heart and increasing the blood pressure.
Call your doctor straight away, or go straight to the Emergency Department at your nearest hospital if you notice any of these serious side effects.

Tell your doctor or pharmacist if you notice anything else that may be making you feel unwell.

Other side effects not listed here may occur in some people.

Accidental injection into the hands, fingers or feet may result in the following:

  • fast or noticeable heart beat
  • pale skin colour at the site of accidental injection
  • feeling of coldness at the site of accidental injection
  • bruising or discolouration at the site of accidental injection
  • bleeding

If an accidental injection occurs at one of these areas, seek medical attention immediately

Injection related injuries, such as needle cuts and bent needles, have been reported in people who are uncooperative and kick or move during the injection.

Rare cases of serious skin infections have been reported following injection into the buttock.

Sodium metabisulfite

EPIPEN contains a very small quantity of sodium metabisulfite as a preservative. In people who are allergic to sodium metabisulfite, this could cause, for example, severe allergic reactions (hypersensitivity) or breathing difficulty (bronchospasm) in certain groups of people, especially those with history of asthma. However, the active ingredient, adrenaline, in EpiPen is expected to overcome any allergic reaction to sodium metabisulfite. In an emergency, the risk of exposure to the very small amount of sodium metabisulfite is generally outweighed by the benefits of EpiPen.

Reporting side effects

After you have received medical advice for any side effects you experience, you can report side effects to the Therapeutic Goods Administration online at www.tga.gov.au/reporting-problems or New Zealand at nzphvc.otago.ac.nz/reporting. By reporting side effects, you can help provide more information on the safety of this medicine.

Always make sure you speak to your doctor or pharmacist before you decide to stop taking any of your medicines.

7. Product details

This medicine is only available with a doctor's prescription.

What EPIPEN contains

Active ingredient
(main ingredient)
Adrenaline (epinephrine)
Other ingredients
(inactive ingredients)
  • sodium chloride
  • sodium metabisulfite
  • hydrochloric acid.
Potential allergensSulfites

Do not take this medicine if you are allergic to any of these ingredients.

What EPIPEN looks like

EPIPEN (AUST R 42978) delivers one x 0.3 mL dose of adrenaline (epinephrine). This EPIPEN dose provides 300 µg of adrenaline (epinephrine).

The EPIPEN Auto-Injector holds 2 mL of adrenaline (epinephrine) 1:1,000 solution.

The EPIPEN Auto-Injector is packed in a non-waterproof protective plastic carry tube. This carry tube has a yellow cap. The carry tube is supplied in a cardboard pack.

Who distributes EPIPEN

Alphapharm Pty Ltd trading as Viatris
Level 1, 30 The Bond
30-34 Hickson Road
Millers Point NSW 2000
www.viatris.com.au
Phone: 1800 274 276

Distributed in New Zealand by:

Viatris Ltd
PO Box 11-183
Ellerslie
AUCKLAND
www.viatris.co.nz
Telephone 0800 168 169

This leaflet was prepared in Mar 2023.

EPIPEN® is a Viatris company trade mark.

Made in USA

EPIPEN_cmi\Mar23/00

Published by MIMS May 2023

BRAND INFORMATION

Brand name

EpiPen

Active ingredient

Adrenaline (epinephrine)

Schedule

S3

 

1 Name of Medicine

Adrenaline (epinephrine)*.
* In some countries, adrenaline is known as epinephrine.

2 Qualitative and Quantitative Composition

EpiPen adrenaline (epinephrine) injection contains adrenaline (epinephrine) 300 micrograms in 0.3 mL as the active ingredient.

Excipients with known effect.

Contains sulfites.
For the full list of excipients, see Section 6.1 List of Excipients.

3 Pharmaceutical Form

Clear, colourless liquid.

4 Clinical Particulars

4.1 Therapeutic Indications

For the emergency treatment of anaphylaxis (acute severe allergic reactions) due to insect stings, or bites, foods, drugs or other allergens.

4.2 Dose and Method of Administration

Dosage.

Selection of the appropriate dosage strength is determined according to patient bodyweight and this decision should be based on careful assessment of the individual patient and recognition of the life threatening nature of reactions for which EpiPen is prescribed.

Adults (≥ 30 kg).

Intramuscular injection of EpiPen Auto-Injector containing 0.3 mg adrenaline injection (0.3 mg/0.3 mL).

Children (15 to 30 kg).

Intramuscular injection of EpiPen Jr. Auto-Injector containing 0.15 mg adrenaline injection (0.15 mg/0.3 mL).
The doctor or pharmacist may choose to recommend more or less than this amount*. With severe persistent anaphylaxis, repeat injections with an additional EpiPen Auto-Injector may be necessary.
To manage severe anaphylaxis, repeat EpiPen injections may be necessary. Each EpiPen Auto-Injector is used once only. The EpiPen dose may be repeated every 5 to 15 minutes if symptoms recur or have not subsided (see Section 4.9 Overdose).

Use of adrenaline.

1. Before using, check to make sure the solution in the Auto-Injector is not brown in colour. If it is discoloured or contains a precipitate, do not use, since these changes indicate that the effectiveness of the drug product may be decreased.
2. The delivered dose of the EpiPen Auto-Injector should be injected intramuscularly into the anterolateral aspect of the thigh, through clothing if necessary. The EpiPen Auto-Injector should be pushed firmly into the outer mid-thigh until a "click" is heard or felt and it should then be held firmly against the thigh for approximately 3 seconds to ensure the dose is delivered. Instruct caregivers of young children who are prescribed an EpiPen and who may be uncooperative and kick or move during an injection to hold the leg firmly in place and limit movement prior to and during an injection.
3. Do not inject intravenously. Every effort should be made to avoid inadvertent intravascular administration (see Section 4.9 Overdose).
4. Appropriate steps should be taken to ensure that the patient thoroughly understands the indications and use of this device. The EpiPen Auto-Injector should not be used for demonstration purposes. An EpiPen Training Device is available to assist with patient education and practice. The healthcare professional, educator or caregiver should regularly review in detail with the patient, the package leaflet provided inside the EpiPen Auto-Injector carton, which includes usage instructions for the EpiPen Auto-Injector.
5. Patients should be instructed to dispose of the device safely after use by placing the used Auto-Injector in a sharps disposal unit.
The EpiPen Auto-Injector is intended for immediate self-administration. It is designed as emergency supportive therapy only and is not a replacement or substitute for subsequent medical or hospital care.

4.3 Contraindications

Contraindications are relative as this product is intended for use in life threatening emergencies.
Adrenaline should not be used in patients with certain types of arrhythmia, cerebral arteriosclerosis and where vasopressor drugs are contraindicated e.g. thyrotoxicosis.
Adrenaline is also contraindicated in shock (other than anaphylactic shock) in patients or during general anaesthesia with halogenated hydrocarbons or cyclopropane.
Clinical conditions where special precautions are advised and interactions with other medicines are described in further detail in Section 4.4 Special Warnings and Precautions for Use.

4.4 Special Warnings and Precautions for Use

A severe anaphylactic reaction is a life threatening emergency and administration of EpiPen is not intended as a substitute for immediate medical care. In conjunction with the administration of adrenaline, the patient should seek immediate medical or hospital care. More than two sequential doses of adrenaline should only be administered under direct medical supervision.
The presence of anaphylactic shock should be confirmed before administering EpiPen, as EpiPen is only indicated for the treatment of anaphylaxis. Anaphylaxis may occur within minutes after exposure and consist of flushing, apprehension, syncope, tachycardia, thready or unobtainable pulse associated with a fall in blood pressure, convulsions, vomiting, diarrhoea and abdominal cramps, involuntary voiding, wheezing, dyspnoea due to laryngeal spasm, pruritus, rashes, urticaria or angioedema.
For these reasons, auto-injectors should always be carried by such persons in situations of potential risk.
EpiPen Auto-Injector contains sodium metabisulfite, a sulfite which may itself cause allergic-type reactions including anaphylactic symptoms and bronchospasm in certain susceptible persons, especially those with a history of asthma. The alternatives to using adrenaline in a life threatening situation may not be satisfactory. The presence of a sulfite in this product should not deter administration for serious allergic reactions even if the patient is sulfite sensitive.
Do not inject intravenously as cerebral haemorrhage may occur due to a sharp rise in blood pressure. Rapidly acting vasodilators can counteract the marked pressor effects of adrenaline if there is such inadvertent administration.
Use with caution in patients with ventricular fibrillation, cerebral arteriosclerosis, prefibrillatory rhythm, tachycardia, myocardial infarction, phenothiazine induced circulatory collapse and prostatic hypertrophy.
Adrenaline should not be used in the presence of cardiac dilation.
Adrenaline causes ECG changes including a decrease in T-wave amplitude in all leads of normal persons. Caution should be taken when administering in the presence of cardiac dilation.
Adrenaline should be administered with caution in patients who have heart disease, including patients with cardiac arrhythmias, coronary artery or organic heart disease or hypertension.
Adrenaline can cause potentially fatal ventricular arrhythmias including fibrillation, especially in patients with organic heart disease or those receiving other drugs that sensitise the heart to arrhythmias (see Section 4.5 Interactions with Other Medicines and Other Forms of Interactions).
Anginal pain may be induced by adrenaline in patients with coronary insufficiency.
Use with caution in patients with pre-existing conditions whereby the use of vasopressor drugs is contraindicated (e.g. thyrotoxicosis).
Administer with caution to the elderly, and to individuals with diabetes, cardiovascular disease, hypertension, organic brain damage, high intraocular pressure, severe renal impairment, hypercalcaemia, hypokalaemia, hyperthyroidism and psychoneurosis. In patients with parkinsonism, the drug increases rigidity and tremor.
Syncope has occurred following administration to asthmatic children.
EpiPen should not be injected into the hands, feet, ears, nose, buttocks or the genitalia as it may result in loss of blood flow to the affected area and may not provide effective treatment of anaphylaxis. Treatment should be directed at vasodilatation in addition to further treatment of anaphylaxis. If an accidental injection into one of these areas occurs, specialist medical advice must be sought immediately. Ensure the product is kept well clear of the face.
Additionally, injection into the buttock has been associated with Clostridial infections (gas gangrene). Cleansing with alcohol does not kill bacterial spores, and therefore, does not lower this risk.
Rare cases of serious skin and soft tissue infections, including necrotising fasciitis and myonecrosis caused by Clostridia (gas gangrene), have been reported at the injection site following adrenaline injection for anaphylaxis. Clostridium spores can be present on the skin and introduced into the deep tissue with subcutaneous or intramuscular injection. While cleansing with alcohol may reduce presence of bacteria on the skin, alcohol cleansing does not kill Clostridium spores. To decrease the risk of Clostridium infection, do not inject EpiPen into the buttock. Advise patients to seek medical care if they develop signs or symptoms of infection, such as persistent redness, warmth, swelling, or tenderness, at the adrenaline injection site.
In patients with a thick sub-cutaneous fat layer (> 20 mm skin to muscle distance under maximum compression), there is a risk for adrenaline not reaching the muscle tissue resulting in a suboptimal effect (see Section 5.2 Pharmacokinetic Properties). A second injection with an additional EpiPen may be needed in such individuals (see Section 4.2 Dose and Method of Administration).
Hold leg firmly during injection. Lacerations, bent needles, and embedded needles have been reported when adrenaline has been injected into the thigh of young children who are uncooperative and kick or move during an injection. To minimise the risk of injection related injury when administering EpiPen to young children, instruct caregivers to hold the child's leg firmly in place and limit movement prior to and during injection.
Despite these concerns, adrenaline is essential for the treatment of anaphylaxis. Therefore, patients with these conditions, and/or any other person who might be in a position to administer EpiPen Auto-Injector to a patient experiencing anaphylaxis should be carefully instructed in regard to the circumstances under which adrenaline should be used.

Use in the elderly.

No data available.

Paediatric use.

No data available.

Effects on laboratory tests.

No data available.

4.5 Interactions with Other Medicines and Other Forms of Interactions

Central nervous system and other medicines.

The effects of adrenaline may be potentiated by tricyclic antidepressants, levothyroxine sodium, thyroid hormones, monoamine oxidase inhibitors (MAO inhibitors), catechol-O-methyl transferase inhibitors (COMT inhibitors), theophylline, oxytocin, parasympatholytics, some antihistamines (e.g. diphenhydramine, dexchlorpheniramine, chlorpheniramine and tripelennamine), levodopa and alcohol.

Other sympathomimetic agents.

Adrenaline should not be administered with other sympathomimetic agents because of the danger of additive effects and increased toxicity.

Alpha-adrenergic blocking agents.

Alpha-adrenergic blocking agents such as ergot alkaloids and phentolamine can reverse the pressor response to adrenaline.

Beta-adrenergic blocking agents.

Patients taking nonselective beta-blocking drugs when administered adrenaline for the treatment of an anaphylactic reaction may experience severe hypertension and bradycardia. Propranolol inhibits the bronchodilator effect of adrenaline. The risk of cardiac arrhythmias is higher when adrenaline is given to patients receiving digoxin or quinidine.

General anaesthetics.

Halothane and other anaesthetics such as cyclopropane and trichlorethylene increase the risk of adrenaline induced ventricular arrhythmias and acute pulmonary oedema if hypoxia is present.

Hypoglycaemic agents.

Adrenaline induced hyperglycaemia may lead to loss of blood sugar control in diabetic patients treated with hypoglycaemic agents. It may be necessary for diabetic patients receiving adrenaline to increase their dosage of insulin or oral hypoglycaemic drugs.

4.6 Fertility, Pregnancy and Lactation

Effects on fertility.

Studies of adrenaline after repeated exposure in animals to evaluate the effect on fertility have not been conducted. As adrenaline is a substance that naturally occurs in the body, it is unlikely that this drug would have any detrimental effects on fertility. This should not prevent the use of adrenaline under the conditions noted under Section 4.1 Therapeutic Indications.
(Category A)
Adrenaline has been given to a large number of pregnant women and women of childbearing age without any proven increase in the frequency of malformations or other direct or indirect harmful effects on the foetus having been observed.
Adrenaline may delay the second stage of labour by inhibiting contractions of the uterus.
Use with caution in pregnant women whose maternal blood pressure is in excess of 130/80.
Adrenaline is not orally bioavailable. Adrenaline is excreted in breast milk but would not be expected to have any effect on the nursing infant.

4.7 Effects on Ability to Drive and Use Machines

The patients' ability to drive and use machinery may be affected by the anaphylactic reaction, as well as by possible adverse effects to adrenaline.

4.8 Adverse Effects (Undesirable Effects)

Common symptomatic adverse events include anxiety, apprehensiveness, restlessness, tachycardia, respiratory difficulty, tremor, weakness, dizziness, headache, dyspnoea, cold extremities, sweating, pallor, nausea, vomiting, sleeplessness, hallucinations, palpitations, fear and flushing or redness of face and skin. Psychomotor agitation, disorientation, impaired memory and psychosis may occur.
Potentially fatal ventricular arrhythmias, including ventricular fibrillation, may occur and severe hypertension may lead to cerebral haemorrhage and pulmonary oedema.
Angina may occur in patients with coronary artery disease.
Rare cases of stress cardiomyopathy have been reported in patients treated with adrenaline.
The potential for adrenaline to produce these types of adverse effects does not contraindicate its use in an acute life threatening allergic reaction.
Accidental injection into the hands, fingers or feet may result in loss of blood flow to the affected area (see Section 4.4 Special Warnings and Precautions for Use). Adverse events experienced as a result may include increased heart rate, local reactions including injection site pallor, coldness or hypoaesthesia or injury at the injection site resulting in bruising, bleeding, discolouration, erythema or skeletal injury.
Lacerations, bent needles, and embedded needles have been reported when adrenaline has been injected into the thigh of young children who are uncooperative and kick or move during the injection (see Section 4.4 Special Warnings and Precautions for Use).
Rare cases of serious skin and soft tissue infections, including necrotising fasciitis and myonecrosis caused by Clostridia (gas gangrene), at the injection site have been reported from post-marketing experience. Injection into the buttock has resulted in cases of gas gangrene (see Section 4.4 Special Warnings and Precautions for Use).

Reporting suspected adverse effects.

Reporting suspected adverse reactions after registration of the medicinal product is important. It allows continued monitoring of the benefit-risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions in Australia at www.tga.gov.au/reporting-problems or in New Zealand at https://nzphvc.otago.ac.nz/reporting/.

4.9 Overdose

Effects.

Overdosage or inadvertent intravascular injection of adrenaline may cause cerebral haemorrhage resulting from a sharp rise in blood pressure. Fatalities may also result from pulmonary oedema because of peripheral vascular constriction together with cardiac stimulation.
Cardiac arrhythmias may lead to ventricular fibrillation and death.
Repeated administration of adrenaline can result in severe metabolic acidosis because of elevated blood concentration of lactic acid.

Treatment.

Adrenaline is rapidly inactivated in the body and treatment of acute toxicity is mainly supportive. If necessary, the combined alpha and beta mediated effects of adrenaline may be counteracted by labetalol. Individually, alpha mediated effects may be counteracted by phentolamine whilst beta mediated effects may be counteracted by beta blocking agents.
For information on the management of overdose, contact the Poisons Information Centre on 13 11 26 (Australia) or 0800 POISON or 0800 764 766 (New Zealand).

5 Pharmacological Properties

5.1 Pharmacodynamic Properties

Mechanism of action.

Adrenaline is a sympathomimetic drug, acting on both alpha and beta receptors. Through its action on alpha adrenergic receptors, adrenaline lessens the vasodilatation and increased vascular permeability that occurs during anaphylaxis, which can lead to a loss of intravascular fluid volume and hypotension. Through its action on beta-adrenergic receptors, adrenaline causes bronchial smooth muscle relaxation that helps alleviate bronchospasm, wheezing and dyspnoea that may occur during anaphylaxis. Other major effects are increased systolic blood pressure, reduced diastolic pressure, tachycardia, hyperglycaemia and hypokalaemia. It is a powerful cardiac stimulant, raising cardiac rate, cardiac output and coronary circulation. It has vasopressor properties, an antihistaminic action and is a bronchodilator. Adrenaline also alleviates pruritus, urticaria, and angioedema and may be effective in relieving gastrointestinal and genitourinary symptoms associated with anaphylaxis because of its relaxant effects on the smooth muscle of the stomach, intestine, uterus, and urinary bladder.

Clinical trials.

No data available.

5.2 Pharmacokinetic Properties

Absorption.

The onset of action is rapid and of short duration. The plasma half-life of adrenaline is about 2.5 minutes. However, following subcutaneous or intramuscular administration, local vasoconstriction retards absorption, so that the effects occur insidiously and last much longer than the half-life would predict.

Distribution.

Adrenaline is rapidly distributed to the heart, spleen, several glandular tissues and adrenergic nerves. It is approximately 50% bound to plasma proteins.

Metabolism.

Adrenaline is rapidly inactivated in the liver and tissues mostly by the enzymes COMT and MAO. The liver is rich in these enzymes and is an important, although not essential, tissue in the degradation process.

Excretion.

Up to 90% of the intravenous dose is excreted as metabolites in the urine. It crosses the placenta and is excreted in breast milk.

Clinical trials.

In a pharmacokinetic study in 35 healthy subjects, grouped by varying degrees of thickness in the subcutaneous fat layer of the thigh and stratified by gender, a single 0.3 mg/0.3 mL injection at the anterolateral aspect of the mid-thigh was made with an EpiPen Auto-Injector and was compared in crossover design to a manual syringe-delivered dose with needles individualized for delivery to muscle layer. The results indicate that female subjects with a thick sub-cutaneous fat layer (> 20 mm skin to muscle distance under maximum compression) had slower adrenaline absorption rate, reflected in a trend to lower plasma exposure in such subjects in the first ten minutes following injection. However, overall adrenaline exposure from 0 to 30 min (AUC0-30 min) for all groups of subjects receiving EpiPen exceeded exposures resulting from syringe delivery.
Both inter-subject and intra-subject variability was however high in this study and therefore robust conclusions cannot be drawn.

5.3 Preclinical Safety Data

Genotoxicity.

Adrenaline and other catecholamines have been shown to have mutagenic potential in vitro and to be an oxidative mutagen in a WP2 bacterial reverse mutation assay. Adrenaline had a moderate degree of mutagenicity and was positive in the DNA Repair test with B. subtilis (REC) assay but was not mutagenic in the Salmonella bacterial reverse mutation assay.
Studies of adrenaline after repeated exposure in animals to evaluate the mutagenic potential have not been conducted. This should not prevent the use of adrenaline under the conditions noted under Section 4.1 Therapeutic Indications.

Carcinogenicity.

Studies of adrenaline after repeated exposure in animals to evaluate the carcinogenic potential have not been conducted. This should not prevent the use of adrenaline under the conditions noted under Section 4.1 Therapeutic Indications.

6 Pharmaceutical Particulars

6.1 List of Excipients

Hydrochloric acid, sodium chloride, sodium metabisulfite, water for injections.

6.2 Incompatibilities

Adrenaline and its salts are physically incompatible with alkalis, metals, oxidising agents, sodium warfarin, hyaluronidase and many other drugs; it forms polymers with sodium bicarbonate.
Oxidation can be inhibited by addition of anti-oxidants. The solution darkens in colour upon exposure to air or light.

6.3 Shelf Life

In Australia, information on the shelf life can be found on the public summary of the Australian Register of Therapeutic Goods (ARTG). The expiry date can be found on the packaging.

6.4 Special Precautions for Storage

Adrenaline is light sensitive and should be stored in the carrier tube provided. The carrier tube is not waterproof.
Store below 25°C. Temperature excursions between 15°C to 25°C permitted.
Do not refrigerate. Protect from light.
Before using, check to make sure the solution in the auto-injector is not discoloured. Replace the auto-injector if the solution is discoloured or contains a precipitate.

6.5 Nature and Contents of Container

The EpiPen Auto-Injector contains 2 mL Adrenaline Injection USP 0.3 mg/0.3 mL and delivers a single 300 microgram adrenaline dose.
EpiPen Auto-Injector is available in a single pack or in a pack of 2.
Not all pack sizes may be marketed.

Australian register of therapeutic goods (ARTG).

AUST R 42978 - EpiPen adrenaline (epinephrine) 0.3 mg/0.3 mL injection syringe auto-injector.

6.6 Special Precautions for Disposal

Any unused medicine or waste material should be disposed of in accordance with local requirements.

6.7 Physicochemical Properties

Chemical structure.

Chemical name: (R)-1-(3,4-dihydroxyphenyl)-2-methylaminoethanol.
Structural formula:
Molecular formula: C9H13NO3. Molecular weight: 183.2.

CAS number.

CAS Registry No: 51-43-4.
Adrenaline is a white odourless crystalline powder, soluble in solutions of mineral acids and alkalis.
Adrenaline solution deteriorates rapidly on exposure to air or light, turning pink from oxidation to adrenochrome and brown from the formation of melanin. Replace the EpiPen Auto-Injector if the adrenaline solution appears discoloured.
EpiPen has a pH range of 2.2-5.0.

References

* Australasian Society of Clinical Immunology and Allergy.
Anaphylaxis emergency medication - Adrenaline (Epinephrine) Injector Prescription, ASCIA 2022
https://www.allergy.org.au/images/stories/anaphylaxis/2022/ASCIA_HP_Guidelines_Adrenaline_Injector_Prescription_2022.pdf (Accessed February 2022).

7 Medicine Schedule (Poisons Standard)

S3 (Pharmacist Only Medicine).

Summary Table of Changes