14 doctors weighed in:
How much is a dosage in an epi-pen?
14 doctors weighed in

Dr. Steven Machtinger
Internal Medicine - Allergy & Immunology
6 doctors agree
In brief: EpiPen (epinephrine) above 54#
Although the pdr states that Epipen (epinephrine) junior should be given to children >60 pounds, many allergists choose a lower minimal weight.
A common cross-over is Epipen (epinephrine) junior for children up to 54 pounds and Epipen (epinephrine) for everyone heavier.

In brief: EpiPen (epinephrine) above 54#
Although the pdr states that Epipen (epinephrine) junior should be given to children >60 pounds, many allergists choose a lower minimal weight.
A common cross-over is Epipen (epinephrine) junior for children up to 54 pounds and Epipen (epinephrine) for everyone heavier.
Dr. Steven Machtinger
Dr. Steven Machtinger
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Dr. Alex Martinez
Internal Medicine - Allergy
3 doctors agree
In brief: 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.

In brief: 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. Alex Martinez
Dr. Alex Martinez
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2 comments
Dr. Michael P Vaughn
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.
Dr. Kenneth Backman
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.
Dr. Scott Katz
Pediatrics
2 doctors agree
In brief: 2 Sizes
There are two sizes.
The Epipen (epinephrine) jr. Is 0.15mg and is intended for patients up to 60 pounds. The Epipen (epinephrine) is 0.3mg and is for those over 60 pounds.

In brief: 2 Sizes
There are two sizes.
The Epipen (epinephrine) jr. Is 0.15mg and is intended for patients up to 60 pounds. The Epipen (epinephrine) is 0.3mg and is for those over 60 pounds.
Dr. Scott Katz
Dr. Scott Katz
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Dr. Maziar Rezvani
Internal Medicine - Allergy & Immunology
2 doctors agree
In brief: 0.3mg
And there is no contraindication to using an epi-pen during a severe hypersensitivity reaction.

In brief: 0.3mg
And there is no contraindication to using an epi-pen during a severe hypersensitivity reaction.
Dr. Maziar Rezvani
Dr. Maziar Rezvani
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1 comment
Dr. Sahba Ferdowsi
Great answer! Wishing you'all the very best.
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