I would suggest he first try beef insulin ........ it is available on PBS and in australia is marketed by Aspen pharmaceuticals

I was so brittle I was having 4 to 5 hypos a day and afraid to go to bed at night

in nearly I year on beef I have only had a total of 4 hypos

if lantus is accidently injected into a blood vessel it causes immediate severe hypo ......... docs wont tell you this but do a net search

also many diabetics are so brittle due to so called human insulin which is genetically engineered

see http://www.vision.net.au/~scofa/iddta/gm.htm

koz