Blue to the sky, orange to the thigh. The safety release, the hold, the mid-outer thigh, and the emergency call that has to follow every dose.
Key points
- 01The whole device is built around one mistake. Almost every safety instruction on an auto-injector exists to stop a thumb ending up over the orange end. The needle fires from that end with force. Fist around the middle, orange down, and nothing over either end.
- 02Blue to the sky, orange to the thigh. The mnemonic is worth memorising because it survives panic. Blue safety release upward, orange needle end toward the leg. People who have only read the leaflet once will still recall a rhyme when they cannot recall a numbered list.
- 03The safety release comes off straight, at the last moment. Pull the blue release straight up without bending or twisting, and only when you are about to inject. Removing it early and then carrying the device around is how accidental firings happen.
- 04The site is the middle of the outer thigh. Not the front of the thigh, not the buttock, and never the hands or feet. The labelling warns specifically that accidental injection into the hands or feet can affect blood flow to that area, and it needs emergency treatment if it happens.
- 05Through clothing is intended here. This is the one injection on this site where going through fabric is part of the design. There is no time to undress in anaphylaxis. Our post on injecting through clothing explains why the answer is the opposite for routine injections.
- 06The hold time has changed over the years. Older EpiPen instructions described a longer count, and the current labelling specifies 3 seconds. This is exactly why the instructions in your box beat any number you remember from a training session years ago.
- 07Emergency care follows every dose, without exception. Epinephrine buys time, it does not end the reaction. Symptoms can return once it wears off, which is why the instruction is always to seek immediate emergency medical care after use, even if the person looks completely recovered.
- 08A second dose is sometimes needed. Some people are prescribed two devices for this reason. If symptoms have not improved or return before help arrives, your action plan and the emergency dispatcher will guide whether the second one is used. Carry both if you were given both.
- 09Hesitation is the documented failure, not overuse. The 2023 anaphylaxis practice parameter update, published in Annals of Allergy, Asthma and Immunology in 2024, addresses the management questions clinicians debate. The consistent patient-facing message across guidance is that early use is safer than waiting.
- 10People who have not practised get it wrong. Studies of real-world auto-injector use, including work on patients prescribed a device immediately after anaphylaxis, repeatedly find gaps between having a device and being able to use it. The trainer in the box exists for that reason.
- 11Storage is room temperature, in the tube, out of the light. The labelling stores these devices at controlled room temperature, protected from light, and specifically not in the fridge. A glovebox in summer and a car door in winter are both outside that range. Our storing injection supplies post covers the principle.
- 12Expired devices are replaced, not relied on. Check the date and the window regularly and replace before expiry. In an emergency where the only device available is expired, guidance has been that using it is preferable to giving nothing while emergency help is called, but that is a fallback and not a plan.
Pre-injection checklist
- ✓Read the instructions for use that came with your device and keep them with it. Auto-injectors are not interchangeable, and the handling of other brands differs from the one described here.
- ✓Practise with the trainer that comes in the carton, not with the real device. Studies of real-world use find that people who have never handled the device get the steps wrong under pressure.
- ✓Check the viewing window from time to time. The solution should be clear and colourless. A discoloured or cloudy solution, or visible particles, means the device is replaced.
- ✓Everyone who might have to use it on you should be shown how, including family, colleagues and school staff. This is the one injection technique that other people may have to perform for you.
- ✓This is a technique reference, not medical advice. Whether epinephrine is right for you, and when to use it, comes from your prescriber and your action plan.
Step-by-step guide
- 1
Recognise that this is the moment
Anaphylaxis can involve breathing difficulty, throat tightness, widespread hives, swelling of the face or lips, vomiting, or feeling faint after an exposure. Guidance is consistent that epinephrine is given early rather than held back while you decide. Follow your action plan.
Pro tipAlways check the fluid is clear and colourless before injection. - 2
Get the device out of the carrier tube
Flip the yellow or green cap off the tube and tip the auto-injector into your hand. Do not spend time hunting for glasses or reading the leaflet now. The device is designed to be usable by someone who has only rehearsed once.
Pro tipAlways check the fluid is clear and colourless before injection. - 3
Hold it correctly, orange tip down
Make a fist around the middle of the unit with the orange tip pointing downward. Blue to the sky, orange to the thigh. Never put a thumb, finger or hand over either end, because the needle comes out of the orange end.
Pro tipAlways check the fluid is clear and colourless before injection. - 4
Pull the blue safety release straight up
Remove the blue safety release by pulling it straight off. Do not bend it and do not twist it. Pull it off with your other hand, not with a thumb pressed against the device, and only when you are ready to inject.
Pro tipAlways check the fluid is clear and colourless before injection. - 5
Swing and push firmly into the mid-outer thigh
Swing the orange tip against the middle of the outer thigh and push firmly until it clicks. The click means the device has fired. This site is used because the muscle there is large and reachable, and it works through clothing.
Pro tipAlways check the fluid is clear and colourless before injection. - 6
Hold it in place for the count in your instructions
Keep it pressed firmly against the thigh for the count your instructions for use specifies, which on the current EpiPen labelling is 3 seconds. Counting out loud helps. Pulling away early is the most common reason a dose is not fully delivered.
Pro tipAlways check the fluid is clear and colourless before injection. - 7
Remove and massage the area
Take the device away from the leg. The current labelling then has you massage the injection area for about 10 seconds. The orange cover extends automatically to hide the needle as the device comes away.
Pro tipAlways check the fluid is clear and colourless before injection. - 8
Call emergency services now
Every dose is followed by emergency medical care, even if the person seems better. Symptoms can return after the medication wears off. Tell the dispatcher that epinephrine has been given and at what time.
Pro tipAlways check the fluid is clear and colourless before injection. - 9
Keep the person lying down and watch them
Unless they are vomiting or struggling to breathe when flat, guidance is to keep the person lying down with the legs raised rather than standing them up. Stay with them and be ready to describe what happened to the ambulance crew.
Pro tipAlways check the fluid is clear and colourless before injection. - 10
Take the used device with you
Hand the used auto-injector to the emergency team so they know the exact device and time. If that is not possible, put it in a hard-sided container. Never put a fired auto-injector loose into a bin or a pocket.
Pro tipAlways check the fluid is clear and colourless before injection.
After the injection
- Call emergency services immediately after the dose, every time, even if symptoms improve.
- Keep the person lying down with legs raised unless they are vomiting or breathing is easier upright.
- Note the time the dose was given and tell the ambulance crew.
- Hand the used device to the emergency team, or put it in a hard-sided container. Never loose in a bin.
- Replace the used device as soon as possible, and check the expiry date on the replacement.
Common mistakes
- Any difficulty breathing, throat tightness, or swelling of the lips, tongue or throat. Use the device and call emergency services.
- Feeling faint, collapsing, or a sudden drop in alertness after an exposure.
- Symptoms that return after an initial improvement, which can happen as the medication wears off.
- Accidental injection into a hand, finger or foot, which needs immediate emergency treatment because blood flow to that area can be affected.
- A device that has fired but does not appear to have delivered, in which case emergency services still need to be called immediately.
- A discoloured or cloudy solution in the viewing window, which means the device is replaced before it is ever needed.
Frequently asked questions
How do I use an EpiPen?+
Take it from the carrier tube, make a fist around the middle with the orange tip pointing down, pull the blue safety release straight up, push the orange tip firmly into the middle of the outer thigh until it clicks, hold for the count in your instructions, then call emergency services. Educational information only, not medical advice.
How long do I hold it in place?+
The current EpiPen labelling specifies 3 seconds. Older instructions used a longer count, which is why the leaflet in your box takes priority over anything remembered from a previous training session.
Which way round does it go?+
Blue to the sky, orange to the thigh. The needle comes out of the orange end, so nothing should ever be over it, and the blue safety release is pulled straight up from the other end.
Can I inject through clothes?+
Yes. The device is designed to work through clothing, and there is no time to undress during anaphylaxis. This is the exception to the usual rule, which our post on injecting through clothing explains.
Do I still need to call an ambulance if the person recovers?+
Yes, every time. Epinephrine wears off and symptoms can return, so immediate emergency medical care follows every dose. Tell the dispatcher that epinephrine was given and at what time.
Can I use an expired EpiPen?+
Replace devices before they expire and check the date regularly. In an emergency where the only device to hand is expired, guidance has been that using it is preferable to giving nothing while help is called. It is a fallback, not a plan.
Where should I keep it?+
At controlled room temperature, protected from light, in its carrier tube, and with you. Not in the fridge and not left in a car. Our storing injection supplies post covers the general principle.
Are all auto-injectors the same?+
No. Handling differs between brands and devices, including the safety release, the hold time and whether the device talks you through it. Read the instructions for the device you actually carry, and practise with its trainer.
Sources
- DailyMed. EPIPEN (epinephrine injection, USP) auto-injector, prescribing information and instructions for use.
- MedlinePlus. Epinephrine Injection: patient drug information.
- Anaphylaxis: a 2023 practice parameter update. Annals of Allergy, Asthma and Immunology, 2024.
- The Ability to Use Epinephrine Autoinjector in Patients Who Receive a Prescription Immediately after Anaphylaxis. International Archives of Allergy and Immunology, 2021.
- American Academy of Allergy, Asthma and Immunology. Anaphylaxis overview for patients.