Authored: 07/07/2023
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EpiPen
Overview
An EpiPen is a life-saving emergency medication for individuals with severe allergies, providing rapid relief from allergic reactions. It offers a convenient way to ensure you're prepared for unexpected severe allergic episodes.
- 2 injections from £88.95
- Used to treat anaphylaxis
- Adrenaline auto-injector
>> BUY EPIPEN FOR SCHOOLS <<
Overview
Buy an EpiPen Online UK
You can buy an EpiPen online from our UK registered online doctor and pharmacy service. This service is only available to patients who have been prescribed an EpiPen by their GP previously. As part of your order, you must complete a short online consultation in the form of an assessment. This helps our doctors make sure that it’s safe to prescribe for you.
If you are ordering on behalf of a school, please use our EpiPens for Schools page to arrange the order.
You can sign up for the EpiPen expiry alert service to make sure that you get notified before your injector(s) expire.
What is an EpiPen?
An EpiPen is a well-known brand of adrenaline (epinephrine) auto-injectors. Adrenaline auto-injectors are automatic injection devices that contain adrenaline for allergic emergencies. It’s used to treat sudden life-threatening allergic reactions (anaphylactic shock) to things like foods, drugs, or insect bites and stings.
The injector should be used as soon as a serious reaction is suspected and can be self-administered by the person experiencing the reaction or by someone helping them. Although EpiPens are generally effective for managing anaphylactic reactions, you must always seek medical attention after using an adrenaline auto-injector.
How does it work?
Anaphylaxis is a severe and potentially life-threatening reaction to a trigger like an allergy. It happens when the immune system of the body overreacts to a trigger. This overreaction can cause many symptoms such as a rash; swelling of the lips, throat and tongue; wheezing; shortness of breath/ difficulty breathing, and vomiting.
An EpiPen delivers adrenaline via injection, which works on the respiratory system and the cardiovascular system to stop the serious effects of anaphylaxis. It works by constricting blood vessels, relaxing muscles in the lungs to improve breathing, stimulating heartbeat and reducing swelling.
Dosages
An adult EpiPen is 0.3 mg and intended to be used by people with a bodyweight above 25 kg (3 stone 13 lbs). For people or children weighing less than 25 kg (3 stone 13lbs), EpiPen Jr may be more appropriate for use. Ask your doctor or pharmacist for advice if you’re unsure.
How to use an EpiPen
The EpiPen website has a useful guide and video on how to use your injector. You should make sure you know how to use an EpiPen when it’s first prescribed for you. Instructions are also included on the side of each injector.
To use it, grab the injector with your dominant hand and remove the blue safety cap. Hold the injector at 90 degrees and approximately 10cm away from your outer thigh. The orange tip should be pointing towards your outer thigh. Jab the EpiPen into your outer thigh at a right angle and hold it firmly for 3 seconds before removing it.
The EpiPen needle length can go through certain clothing. There’s no need to remove clothing when using the injector, but make sure that it won’t hit things like buttons, zippers or buckles.
The injector has a small window that allows you to see the liquid inside. You should regularly check this to make sure the solution is still clear and colourless. If you notice the solution is discoloured or contains particles, you should replace it, even if you notice it before the expiry date. You should regularly check your injectors to make sure they are still in date.
You should carry two injectors with you at all times. A second injection of adrenaline can be given after 5-15 minutes if the symptoms haven’t improved.
EpiPen Summary
| Dose | Inject into the outer thigh as directed when required |
| Use | Treats severe allergic reactions |
| Type of medicine | Adrenaline - Anaphylaxis treatment |
| Mechanism | Constricts blood vessels, relaxes airways, reduces swelling and stimulates heartbeat |
| Active Ingredient | Adrenaline 0.3mg |
| Price | From £47.95 |
| Side Effects | Can include sweating, irregular heartbeat, dizziness, increased blood pressure |
EpiPen Prices
| 1 Pen | £47.95 |
| 2 Pens | £88.95 |
Alternative treatments
Anaphylaxis is a medical emergency and can be fatal. You should call 999 straight away, even if you have an adrenaline auto-injector. EpiPen (epinephrine) is one brand of adrenaline auto-injector that’s available in the UK.
Two other brands, called Jext and Emerade, are available to be prescribed in the UK. These are also adrenaline auto-injectors but there are slight differences in the instructions for each brand.
EpiPen Side Effects
The side effects include an irregular heartbeat, nausea, sweating, vomiting, dizziness and high blood pressure. A portion of these side effects may be attributed to the stress of the situation and the normal reaction of the body to adrenaline. See the patient information leaflet for further details on the possible side effects.
Written by Qualified Experts
All of our medication and condition content is written by UK qualified pharmacists and doctors.
Reviewed: 09/01/2025
FAQ
General Information
What does an EpiPen do?
An EpiPen contains adrenaline and is used to treat a severe allergic reaction known as anaphylaxis. Its rapid action can help reverse life-threatening symptoms in emergencies.
Do you need a prescription for an EpiPen?
Yes. In the UK, EpiPens are prescription-only medicines and must be prescribed by a doctor or healthcare professional.
Usage & Dosage
How do I use an EpiPen correctly?
Remove the safety cap, firmly press the tip against the outer thigh until you hear a click, and hold it in place for several seconds. Always follow your healthcare professional’s instructions and seek immediate medical attention afterward.
Where do you inject an EpiPen?
An EpiPen should be injected into the outer thigh. It can be administered through clothing if necessary, though care should be taken to avoid items like buttons or zippers.
What should I do after using an EpiPen?
After using an EpiPen, call emergency services immediately— even if you start feeling better— as further medical evaluation is essential.
Effectiveness & Results
How quickly does an EpiPen work?
An EpiPen is designed to work within minutes, helping to reverse the symptoms of anaphylaxis rapidly. However, even after administration, seek emergency care as symptoms may recur.
Side Effects & Safety
What are the common side effects of using an EpiPen?
Common side effects include a rapid heartbeat, tremors, anxiety, and a sensation of warmth. These effects are usually temporary, but if they persist, contact your healthcare provider.
Interactions
Are there any known interactions with an EpiPen?
No direct drug interactions have been reported with the use of an EpiPen. However, it is important to discuss any concerns with your healthcare provider, especially if you are taking other medications.
Storage
What is the shelf life of an EpiPen?
EpiPens typically have a shelf life of 12–18 months from the date of manufacture. Always check the expiry date and replace your device as needed.
How should I store an EpiPen?
Store your EpiPen at room temperature, away from direct sunlight, moisture, and extreme temperatures. Always keep it in its protective case and check the expiry date regularly.
Access & Cost
Where can I buy an EpiPen in the UK?
EpiPens are available through your GP on prescription. Additionally, you can order them online from registered pharmacies such as Simple Online Pharmacy once you have a valid prescription.
How much does an EpiPen cost in the UK?
The cost of an EpiPen can vary. You may receive one for free on the NHS if eligible, or pay a prescription charge. At Simple Online Pharmacy, the price is approximately £47.95 per injector.
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Info Leaflet
Before taking Sildenafil or any medication, it is important to read the Patient Information Leaflet.
