How is an EpiPen used
Sophia Dalton
Updated on April 19, 2026
Place the orange tip against the middle of the outer thigh (upper leg) at a right angle (perpendicular) to the thigh. Swing and push the auto-injector firmly until it “clicks.” The click signals that the injection has started. Hold firmly in place for 3 seconds (count slowly 1, 2, 3).
How does an EpiPen work?
It constricts the blood vessels, leading to increased blood pressure, and decreased swelling. This allows the muscles around the airways to relax, causing the lungs to open. Epinephrine also prevents the release of more allergic chemicals, which stops the progression of the allergic response.
What happens if you use an EpiPen when you don't need it?
An accidental injection to the hands or feet can impair blood flow to these areas and can potentially cause tissue death. This however, is the worst-case scenario. Symptoms of an accidental injection are not usually so severe and may include: temporary numbness or tingling.
Is the EpiPen painful?
Just how much does an EpiPen hurt? Like other injections that go into the muscle (e.g. B12 injections or vaccinations), there’s a sharp sting as the needle punctures the skin. Then there’s a deep ache as the medicine is released into the muscle. The sharp sting will hurt but lasts less than 10 seconds.Where do I stab my EpiPen?
Forcefully push the epinephrine injector into the outer-upper portion of the thigh in a stabbing motion, and hold it there for 10 seconds. (Brands may instruct users to hold the pen in place for 3, 5 or 10 seconds. But holding it for 10 seconds is appropriate in all cases, and it may easier to remember.)
Do epi pens expire?
Injectable epinephrine kits come in various brands, including EpiPen, Twinject, and Avi-Q. All of these devices have a relatively short shelf life due to the instability of epinephrine: approximately one year from the date of manufacture.
Why is EPI used in a code?
Epinephrine is the primary drug used in the cardiac arrest algorithm. It is used for its potent vasoconstrictive effects and also for its ability to increase cardiac output. Epinephrine is considered a vasopressor.
Do u have to go to the hospital after using an EpiPen?
You should always be checked out at the ER after using your EpiPen. That is not because of the epinephrine, but because the allergic reaction probably requires further monitoring. Many patients also need more than one dose of epinephrine or other emergency treatments.Does an EpiPen go through jeans?
Seek immediate medical attention in the case of an accidental injection. It can be administered while wearing pants. Contrary to popular belief, the EpiPen injection can be delivered through clothing.
How long is the needle in an EpiPen?The most frequently prescribed auto-injector in North America and Canada is the EpiPen®, which has a needle length of 15.2 mm. Currently, it is unknown whether this needle length is adequate for intramuscular delivery of epinephrine in adult patients at risk of anaphylaxis.
Article first time published onHow do you feel after EpiPen?
- dizziness.
- muscle tremors.
- loss of skin color.
- headache.
- heart throbbing or pounding.
- nausea.
- vomiting.
- nervousness.
How long does it take for an EpiPen to work?
Allergy & Asthma Epinephrine auto-injectors are devices that contain epinephrine (ep eh NEF rin). This medicine is used to treat severe allergic reactions called anaphylaxis (an uh ful LAK sis). When a child comes in contact with something they are allergic to, reactions usually happen fast, within 30 to 60 minutes.
What does epinephrine feel like?
“I’ve given myself an EpiPen just to see what it was like and it’s not a comfortable experience,” Montanaro said. “You feel totally uncontrolled, you feel anxious, and your heart races.” Once injected, epinephrine works quickly to raise blood pressure and open airways. However, one dose may not be enough for everyone.
When does a doctor prescribe an EpiPen?
This medication is used in emergencies to treat very serious allergic reactions to insect stings/bites, foods, drugs, or other substances. Epinephrine acts quickly to improve breathing, stimulate the heart, raise a dropping blood pressure, reverse hives, and reduce swelling of the face, lips, and throat.
What happens if you inject an EpiPen in the neck?
Symptoms of an epinephrine overdose may include numbness or weakness, severe headache, blurred vision, pounding in your neck or ears, sweating, chills, chest pain, fast or slow heartbeats, severe shortness of breath, or cough with foamy mucus.
Do EpiPens save lives?
EpiPens are available by prescription and usually covered by insurance. While you may never need one, having one can help avoid serious anaphylaxis and even save a life.
Why do doctors push EPI?
Purpose of review: Epinephrine is the primary drug administered during cardiopulmonary resuscitation (CPR) to reverse cardiac arrest. Epinephrine increases arterial blood pressure and coronary perfusion during CPR via alpha-1-adrenoceptor agonist effects.
What drug is given after epinephrine?
Vasopressin should be effective in patients who remain in cardiac arrest after treatment with epinephrine, but there is inadequate data to evaluate the efficacy and safety of vasopressin in these patients (Class Indeterminate).
Why do dentists give epinephrine?
Epinephrine is widely used as an additive in local anesthetics (typically in concentrations of 1:100,000) to improve the depth and duration of the anesthesia, as well as to reduce bleeding in the operative field.
Do EpiPens need to be refrigerated?
Adrenaline (epinephrine) injectors (e.g. EpiPen® or Anapen®)should be stored: In a cool dark place at room temperature, between 15-25°C, but not refrigerated, as temperatures below 15°C may damage the injector mechanism.
What color should epinephrine be?
It should be clear and colorless. Do not use this medicine if the liquid has changed its color (pinkish or brown in color), has become cloudy, or if there are particles in it.
What is a anaphylactic shock?
Anaphylaxis causes the immune system to release a flood of chemicals that can cause you to go into shock — blood pressure drops suddenly and the airways narrow, blocking breathing. Signs and symptoms include a rapid, weak pulse; a skin rash; and nausea and vomiting.
Can you throw away an EpiPen?
You can’t just throw an EpiPen or another auto-injector in the trash since it’s considered hazardous medical waste. EpiPens need to be disposed of properly.
Why are EpiPens injected into the thigh?
This fast uptake of epinephrine is critical in the treatment of anaphylaxis. As opposed to the upper arm, the thigh muscle is one of the body’s largest muscles with more blood supply, so it allows much faster absorption of the medication.
Can you use someone else's EpiPen in an emergency?
“There is no legal problem in any person administering adrenaline that is either prescribed for a specific person or administering adrenaline to an unknown person in such a life saving situation (through specific exemptions in the medicines act).
What are the 5 most common triggers for anaphylaxis?
- foods – including nuts, milk, fish, shellfish, eggs and some fruits.
- medicines – including some antibiotics and non-steroidal anti-inflammatory drugs (NSAIDs) like aspirin.
- insect stings – particularly wasp and bee stings.
- general anaesthetic.
Can Benadryl prevent anaphylaxis?
An antihistamine pill, such as diphenhydramine (Benadryl), isn’t sufficient to treat anaphylaxis. These medications can help relieve allergy symptoms, but work too slowly in a severe reaction.
Can I take Benadryl after EpiPen?
No interactions were found between Benadryl and EpiPen. This does not necessarily mean no interactions exist. Always consult your healthcare provider.
Do signs of anaphylaxis always present within minutes?
Anaphylaxis can occur within minutes. It mostly occurs within 20 minutes to 2 hours after exposure to the allergen. Signs and symptoms may be mild at first, but can rapidly worsen.
Does EpiPen lower blood pressure?
What is EpiPen? EpiPen is an injection containing epinephrine, a chemical that narrows blood vessels and opens airways in the lungs. These effects can reverse severe low blood pressure, wheezing, severe skin itching, hives, and other symptoms of an allergic reaction.
What does it feel like to go into anaphylactic shock?
Coughing; wheezing; and pain, itching, or tightness in your chest. Fainting, dizziness, confusion, or weakness. Hives; a rash; and itchy, swollen, or red skin. Runny or stuffy nose and sneezing.