Carryingan Epipen in Handluggage

My daughter needs to carry an epipen (Pre-loaded adrenaline injectionfor self administration) with her at all times due to a nut allergy, Ipresume this is allowed in hand luggage as it would be no use at all toher in the hold? She will be travelling to Malaga from Bristol with aschool party in March.
Bristol say they just require a repeat prescription in my daughter'sname.
Can you please advise on your policy.
Regards.
Stephanie

Im pretty sure it should be ok, but obviously with some kind of prescription. Regards Joanne