carring a medication for severe anaphylaxis on shabbat

My son has an Epipen for severe anaphylaxis (fish and nut allergies. One source I looked up said it was ok to carry it on Shabbos? Is this right?

erspone:

Shalom,Shavua tov

Thank you very much for your reply. May I ask a further question please?

As you know if, g-d forbid, he would need to use the epipen, he needs to be able to reach it fast. I think strapped to the arm or thigh would make this problematic.

Do you know in practical terms, how people actually carry it? For example, would a lenghth of elastic, say, tied around the epipen and then put across the shoulder (like a lady's handbag) between the vest and shirt be ok?

He is in yeshiva in Jerusalme right now so of course he can carrry it, but the problem arises in London.

Thank you