An épée has nothing to do with an EpiPen, but there are jokes.
   
“or where he keeps his fencing equipment: The epee pen” was posted on Twitter by Kenneth Baer on September 19, 2016. “ever since I found out I was allergic to fencing, I have carried my Épée pen with me everywhere” was posted on Twitter by Kit Marsden on January 2, 2017. “I’m allergic to fencing. I need an épée pen” was posted on Twitter by Cogito, ergo cum on October 6, 2019. “I’m allergic to writing about fencing, so I’ll have to use my epee pen” was posted on Reddit—Oneliners on March 11, 2023.
 
       
Wikipedia: Épée
The épée (English: /ˈɛpeɪ/ or /ˈeɪpeɪ/, French pronunciation: ​[epe]), sometimes spelled epee in English, is the largest and heaviest of the three weapons used in the sport of fencing. The modern épée derives from the 19th-century épée de combat, a weapon which itself derives from the French small sword.
   
Wikipedia: Epinephrine autoinjector
An epinephrine autoinjector (or adrenaline autoinjector, also known by the trademark EpiPen) is a medical device for injecting a measured dose or doses of epinephrine (adrenaline) by means of autoinjector technology. It is most often used for the treatment of anaphylaxis. The first epinephrine autoinjector was brought to market in 1983.
   
Twitter
Kenneth Baer
@KennethBaer
Replying to @OKnox@dcbigjohn and @jetjocko
or where he keeps his fencing equipment:
The epee pen
8:36 PM · Sep 19, 2016
   
Twitter
Kit Marsden
@manek43509
ever since I found out I was allergic to fencing, I have carried my Épée pen with me everywhere…
12:19 PM · Jan 3, 2017 from Norwich, England
   
Twitter
Leigh Albon
@lbalbon
Replying to @DrCurlytek
I have a pen that is shaped like a fencing sword. I only use it to write things down when I have just eaten things I am allergic to.
It’s my epee pen.
7:45 PM · Feb 18, 2018
   
Twitter
Hopefully
@Charliehordern
Oh no, this man is having an allergic reaction to fencing!
Quick, get an epee pen!
4:29 PM · May 22, 2018
   
Twitter
Cogito, ergo cum
@buckshotmonster
I’m allergic to fencing.
I need an épée pen.
5:07 PM · Oct 6, 2019
   
Twitter
Grounded Reason
@GroundedReason
Replying to @brooklynmarie and @Fiordiligi5
I’m having a severe reaction to these fencing puns. Does anyone have an Épée pen?
8:27 PM · Jan 10, 2020
   
Twitter
Rosa Pasquarella
@whatrosasaid
What do you get your friend who loves fencing and is allergic to shellfish?
An epee pen!
This was hypothetical. I have no friend.
9:52 PM · Dec 3, 2020
   
Twitter
GordyGlasgow
@GordyGlasgow
Replying to @fabulucy
Fencing references bring on an allergic reaction… I have to carry an epėe pen… ?(attempts further fencing pun, but fails… dammit,  foiled again)
10:48 AM · Sep 15, 2021
   
Twitter
Samantha Childermas🌖🌨️❄️
@TheLadySam1
A fencing sword is just a large Epee Pen
3:09 PM · Apr 30, 2022
 
Reddit—Oneliners
Posted by u/tincanphonehome March 11, 2023
I’m allergic to writing about fencing, so I’ll have to use my epee pen.
 
Twitter
oneliners and jokes
@funnyoneliners
I’m allergic to writing about fencing, so I’ll have to use my epee pen.
10:15 AM · Mar 11, 2023