Hi there,
FWIW:
I work in outdoor education/adventure and take a range of kids into fairly remote areas participating in adventure activities i.e. whitewater rafting, climbing, hiking, snow etc.
No one in the outdoor industry carries anything more than BurnAid and Ventolin in their first aid kits. No other meds whatsoever - not even Paracetamol, Ibuprophen etc. To date we have never had a problem operating under these well established policies - and we have dealt with various emergecy response situations over the years from dehydration, hypothermia, fractures, shock, anaphylaxis, bites, stings, burns in some fairly difficult geography without vehicle based support or the need to contact the emergency services.
Generally, a top quality, well equiped wilderness first aid kit is all that is needed - and the right quals to go with it - to respond to 99% of first responder issues.
The benchmark kits we use as an industry are through:
Equip Health Systems Pty Ltd
Anythng beyond that - pick up the SatPhone and get onto 000!!
Just my view...and experience.
Cheers,
Mike