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Doctor insights on: What Happens If You Use An Expired Epipen

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What happens if you use an expired epipen (epinephrine) on someone that is extremely allergic?

What happens if you use an expired epipen (epinephrine) on someone that is extremely allergic?

Not a good idea: If you have nothing else on hand, you can use the expired Epipen (epinephrine) knowing that it will be less effective or not effective at all. However it is strongly advised to check the expiration date on the Epipen (epinephrine) regularly since the consequence may be deathly. ...Read more

Epipen (Definition)

Epinephrine is a rhythm control agent which is a ...Read more


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What happens if someone uses an expired epi-pen?

What happens if someone uses an expired epi-pen?

May be ineffective: It is unlikely that anything bad will happen except it may not work as well as a new epi-pen. There is a window to check the clarity of the medication and make sure it is clear, or it may be contaminated or the product has precipitated out of solution. I don't recommend that you rely on an expired product in a life threatening reaction. ...Read more

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What can happen once I use my epipen (epinephrine)?

Epipen (epinephrine): The symptoms may return. That is why more treatment is needed for the allergic rxn after epipen (epinephrine). ...Read more

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At what point should I use my epipen (epinephrine)?

At what point should I use my epipen (epinephrine)?

Immediately: Use your Epipen at the first signs of a severe allergic reaction which can occur minutes to hours after exposure. Signs can include itching or swelling of the mouth and throat, hives, shortness of breath, coughing, or dizziness. If you are unsure you are having a reaction, it is generally better to use the Epipen. Call 911 or have someone get you to an emergency room after using your Epipen. ...Read more

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Can you tell me more about when to use the epipen (epinephrine)?

Can you tell me more about when to use the epipen (epinephrine)?

Acute allergy: Epipen (epinephrine) is for an acute allergic reaction. If you have a known allergy & come into contact with that allergen for any reason, you may develop a reaction. If you develop sudden shortness of breath, wheezing, throat closing, face/lip/tongue swelling, or severe rash (more than just mild non-raised redness on 1 part of your body), inject the epipen (epinephrine) into a large muscle (e.g. thigh) immed. & call 911. ...Read more

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When to use my epipen, (epinephrine) how severe should the symptoms be?

When to use my epipen, (epinephrine) how severe should the symptoms be?

Cannot say in your p: Particular case because a lot of individual factors influence sentivity to stress hormones (hypertension/hypertension meds, heart, lung issues).
Psychologically the panic can be quite significant. Mostly below age 40, heart races and some other mild symptoms but not too much. On the other hand, in an allergic reaction, those symptoms can be very severe. ...Read more

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Will panic be worse when a person who has a history of anxiety uses an Epipen? If so, what are some options to reduce the severity of this symptom?

Will panic be worse when a person who has a history of anxiety uses an Epipen? If so, what are some options to reduce the severity of this symptom?

Unlikely: epinephrine used in the Epipen has very short half life of about five minutes and the dose is very small, in anaphylaxis epinephrine is the first choice, best wishes ...Read more

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Can you use 0.3mg of epinephrine by syringe instead of an epipen?

Can you use 0.3mg of epinephrine by syringe instead of an epipen?

Yes: You can, however, I think there is concern about appropriate dosing and that is why the epipen exists in the first place. However, that has crossed my mind as a possibility. ...Read more

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Should I get arc for IM Benadryl? To use after the epipen? Or is oral better? What is fastest? What other antihistamines could I use?

Should I get arc for IM Benadryl? To use after the epipen? Or is oral better? What is fastest? What other antihistamines could I use?

Benadryl: Use after epipen: in case of a severe allergic reaction, you want to start by epipen, benadryl can be used prior if you can, or after, oral route is just as fine. If no response, the epinephrine should be repeated after 5 minutes of the initial injection, by that time you call 911 or reach emergency, wish you wellness ...Read more

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I am severely allergic to shellfish. I was prescribed an EpiPen (epinephrine). I never had to use one yet. How do you know if you need to use it? Does it reverse?

I am severely allergic to shellfish. I was prescribed an EpiPen (epinephrine). I never had to use one yet. How do you know if you need to use it? Does it reverse?

You will know: Keep your Epi pen with you at all times. Make sure it is up to date. General symptom-those that got you the prescription in the first place but especially throat swelling or trouble breathing. Once you use it it is best to dial 911. Benadryl (diphenhydramine) may also help if taken while you can swallow. The Epi effects wear off over time, though they may be uncomfortable this medicine is life saving ...Read more

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Is it safe to use an epipen (epinephrine) for an allergic reaction to ppd?

Symptoms?: What are your symptoms? A PPD can cause a large local reaction, but not a systemic reaction that requires epinephrine. ...Read more

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I have allergies. When I come into contact with allergen, should I use epipen (epinephrine) before symptoms progress even though I'm just itchy? Or should I wait?

I have allergies. When I come into contact with allergen, should I use epipen (epinephrine) before symptoms progress even though I'm just itchy? Or should I wait?

Depending on what: The allergen is and what reaction you have had in the past....also depends on where the itching is. For example, if you have itching in your throat or around your mouth and have had an allergic reaction needing epi in the past, you should not wait. You should use the epipen (epinephrine) and get to a hospital. This is more likely to be the case with a food allergen or bee sting. Please also discuss with your doctor. ...Read more

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Possible bee, wasp allergy. Should I use epipen (epinephrine) if they bite me?

Possible bee, wasp allergy. Should I use epipen (epinephrine) if they bite me?

If you have had: Significant allergic reactions - then an Epipen (epinephrine) can be life saving. Have you been medically workep up for this? Was the epi-pen prescribed for you? Is the Epipen (epinephrine) within date (not expired)? Do you know how to use an epipen (epinephrine)? In the middle of an anaphlactic reaction is not the time to try to figure it out. ...Read more

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I'm on toprol (metoprolol) XL for tachycardia & high bld press. I have an epipen incase of allergic reactions. Is it safe to use if I get a reaction or no?

I'm on toprol (metoprolol) XL for tachycardia & high bld press. I have an epipen incase of allergic reactions. Is it safe to use if I get a reaction or no?

Epi Pen: The epi pen is to be used for a severe, often life threatening, allergic reactions. In that situation blood pressure is often dangerously low so the epi pen is beneficial.
When used in the proper situation, an epi pen would be safe and even beneficial. ...Read more

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How to treat anaphylactic shock if I'm on propranolol for WPW? Was warned I couldn't use Epipen (epinephrine) but concerned if I have reaction

How to treat anaphylactic shock if I'm on propranolol for WPW? Was warned I couldn't use Epipen (epinephrine) but concerned if I have reaction

Had anaphylaxis?: If you have suffered anaphylaxis, first see an allergist and have him/her discuss with your cardiologist changing propranolol to another anti-arrhythmic drug. There are medications that will be effective for anaphylaxis in patients who are on propranolol, If you haven't suffered from anaphylaxis and have no life-threatening allergies, stop worrying. ...Read more

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For what reason can't you just use an epipen, (epinephrine) after having an allergic reaction/anaphylaxis, and then not go to the emergency room?

It may help for. ..: Only a little while. The Epinephrine in the Epipen counteracts the allergic reaction. But as your body metabolizes the epinephrine, its effects wear off. If the allergic reaction is severe enough, the symptoms may come on again. Severe allergic reactions may involve difficulty breathing and cardiovascular problems, not just swelling and rash, so a prompt subsequent trip to the er is prudent. ...Read more

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What is the best way to introduce antihistamines or H2 blockers into my System after I use epipen (epinephrine) before I go to the hospital? Or tostopmildreaction.

What is the best way to introduce antihistamines or H2 blockers into my System after I use epipen (epinephrine) before I go to the hospital? Or tostopmildreaction.

Anti histamines: You can take either an antihistamine or H2 blocker (or both immediately following using an epipen (epinephrine). It may help stop a worsening allergic reaction. Anti histamines block H1receptors and H2 blockers work on H2 receptors so you are blocking both histaminic receptors. Best is to avoid whatever you are sensitive too in the first place. ...Read more

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I'm allergic to shellfish and I carry an EpiPen (epinephrine) just in case of a severe reaction. I never had to use it yet. How much time does it give you before ER?

I'm allergic to shellfish and I carry an EpiPen (epinephrine) just in case of a severe reaction. I never had to use it yet. How much time does it give you before ER?

Depends: On the severity of the allergic reaction/anaphylaxis and the initial response to the first dose, which is usually favorable, also once diagnosed to have severe allergic reaction/anaphylaxis and epinephrine used, ambulance /911 should be called, antihistamines should be given also at the same time, so keep 2 tablets of any handy. Always watch for expiry date and get two dispensed, hope you won't need it ...Read more

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In the event of a hives-only, but still troubling, allergic reaction, what can someone allergic to Benadryl (diphenhydramine) take? Don't wanna use an epipen for hives.

In the event of a hives-only, but still troubling, allergic reaction, what can someone allergic to Benadryl (diphenhydramine) take? Don't wanna use an epipen for hives.

Hives: Depending on the extent of your hives, you may wish to seek medical help. You can go to a walk in clinic or emergency room. I doubt your hives are from benadryl (diphenhydramine). Whatever prompted you to take Benadryl (diphenhydramine) may have been the cause of your hives. ...Read more

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Can any doc explain why can't you just use an epipen, (epinephrine) after having an allergic reaction/anaphylaxis, and then not go to the emergency room?

Can any doc explain why can't you just use an epipen, (epinephrine) after having an allergic reaction/anaphylaxis, and then not go to the emergency room?

Wears off: This is a deadly allergic reaction and it is important that the causative agent be gone from you system or else a repeat attack can occur. The epi pen will reverse these effects for a time but if you aren't followed and have other agents to suppress immune function like steroids and iv fluids there is a risk that when the epi wears off the reaction returns ...Read more

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Have allergies, hives that are frequent, sometimes warm flushing. When to use epipen (epinephrine)? For every bout of hives? Never have breathing probs or swelling.

Have allergies, hives that are frequent, sometimes warm flushing. When to use epipen (epinephrine)? For every bout of hives? Never have breathing probs or swelling.

No epipen (epinephrine): Epipen (epinephrine) should be used only when you have breathing problem from swelling in the throat of tongue or starting or faint from anaphylaxis. It should not be used for hives which can usually be controlled with 4x daily antihistamine. Consult an allergist to find out what can b e done about your hives. ...Read more

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I have a latex allergy when I have a reaction, should use epipen if I have a rash and hives and itchiness on my face? Or try Benadryl (diphenhydramine)? No SOB

NO and NO: Since you do not get anaphylaxis, you should not use epi. Why do you have it? Benadryl (diphenhydramine) is a sleeping pill and not a good antihistamine. Cetirizine [Zyrtec] is superior and not likely to make you sleepy. Sometimes people take 2 or 3 but usually 1 pill lasts all day. ...Read more

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I am allergic to shellfish. I just took keflex. I took singulair, benadryl, (diphenhydramine) claritin, Pepcid ac, my ventoltor, I am about to use my epipen.?

I am allergic to shellfish. I just took keflex. I took singulair, benadryl, (diphenhydramine) claritin, Pepcid ac, my ventoltor, I am about to use my epipen.?

Go ahead.: When having a severe allergic reaction Epinephrine is the only medication that can help you immediately with oll your symptoms. Asthma rescue inhalers will only help with your lung symptoms if it gets there. Any swelling in the throat will prevent it from getting there.. H-1 (benadryl (diphenhydramine) and claritin) and h-2 (pepcid) antihistamines and singulair will take up to1hour to work. ...Read more

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Would it be dangerous to use an epipen (epinephrine) on my 70 lb kid after nebulized albuterol? She has asthma or reactive airway (not sure) & peanut & nut allergy.

Would it be dangerous to use an epipen (epinephrine) on my 70 lb kid after nebulized albuterol? She has asthma or reactive airway (not sure) & peanut & nut allergy.

Use for anaphylaxis: Epinephrine is used for anaphylaxis. If one is having anaphylaxis then use of injectable Epinephrine is indicated. If the patient is wheezing then albuterol can used as well. If epi is used 911 must be called. ...Read more