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A 50-year-old member asked:

what is the name of the medicine inside an epi-pen?

2 doctor answers6 doctors weighed in
Dr. Giana Nicoara
Allergy and Immunology 28 years experience
Epinephrine: Another name is adrenaline.
Dr. Richard Wachs
Allergy and Immunology 26 years experience
Epinephrine: An epi-pen is Epinephrine in a self injecting device.

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A 44-year-old member asked:

What happens if someone uses an expired epi-pen?

2 doctor answers5 doctors weighed in
Dr. Sean McGhee
Allergy and Immunology 23 years experience
Inadequate effect: The main problem is that epinephrine, the medicine in the epi-pen, degrades over time and becomes less active. That's a real problem when you are relying on it to save you from an allergic reaction. So if you have nothing else, it's better than nothing, but make it a point to keep your epi-pens current. You can use the old ones to practice using the device by injecting an orange or grapefruit.
A 44-year-old member asked:

Which ingredient is the active chemical in an epi-pen?

2 doctor answers8 doctors weighed in
Dr. Andrew Murphy
Allergy and Immunology 29 years experience
Epinephrine: Epi pen is the brand name of the drug Epinephrine which is prescribed for patients with anaphylaxis.
A 41-year-old member asked:

How much is a dosage in an epi-pen?

4 doctor answers15 doctors weighed in
Dr. Alex Martinez
Specializes in Allergy
0.3 mg epinephrine: Each Epipen (epinephrine) autoinjector delivers 0.3 mg of a 1:1000 Epinephrine (adrenaline) solution. An Epipen (epinephrine) jr delivers half (0.15 mg) that amount & are primarily used in children. These self-injection devices contain about 2 cc of clear liquid inside & about 80% of that remains after use. In most cases, 1 dose may be enough but if a hospital is not close by or the reaction worsens, a 2nd dose may be needed.
Dr. Michael P Vaughn
Allergy and Immunology 34 years experience
Unfortunately, many children are given epi-pen jr. as the wrong dose. Epi should be dosed at 0.01 mg/kg of body weight. If a child weighs more than 66 lbs., they should be prescribed the adult epipen.
Nov 18, 2011
Dr. Kenneth Backman
Allergy and Immunology 30 years experience
Many pediatric authorities recommend Epipen 0.3 for children 55 lbs and over. The Epipen Jr is the ideal dose for a 33 lb child, and Epipen 0.3 is correct for 66 lbs and up, leaving a grey zone. We transition children to the Epipen 0.3 at 55 lbs.
Nov 18, 2011
A 41-year-old member asked:

How do I properly store an epi-pen?

2 doctor answers4 doctors weighed in
Dr. Amy Shah
Dr. Amy Shahanswered
Allergy and Immunology 17 years experience
Room temperature: Just don't keep it in a hot car and don't let it get frozen. Other than that anywhere you go.
A 32-year-old member asked:

What complications can develop from using a epi-pen?

2 doctor answers13 doctors weighed in
Dr. Arthur Torre
Pediatric Allergy and Asthma 51 years experience
Nohing significant: Epi-pen is used for treating anaphylaxis. Side effects can include paleness, vomiting and a rapid pulse. All these "pale" in comparison to not using an epi-pen for anaphylaxis which can result in death (pun intended).

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Last updated Dec 29, 2019

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