Hi Larry,
Prefilling a syringe [or two]  is not a problem with Lantus, AFAIK. I
suggest you might find it better protected from extreme temperarures in a
Frio wallet than anywhere else.

Alan H

Larry from NJ wrote in message ...

Here is a decent "thread" on the topic generated on Misc.health.diabetes in
2003.    The participants are Dr. William Biggs,  endocrinologist;  Bill
Coughlin,  Ph.D. scientist working in the insulin pump area;   Herman Rubin,
Ph.D.,  math professor at Purdue;  and Willbill.

It's a long,  somewhat rambling thread which touches on several subjects but
does address the Lantus in preloaded syringe topic.

Caution:  I previously posted that I have never seen a thorough explanation
of the stability of preloaded Lantus question.    This thread is good,  but
all of the statements are compromised by the fact that there was a time in
the early days of Lantus availability in the U.S. in which Lantus appeared
to be subject to damage during shipping and warehousing.    This
hypothetical damage was given for the reason for widely varying lifetimes in
vials used in diabetics' homes.    Some folks could eke out 50 days life
from a vial,   some folks only 20 days,   some folks saw "bad" Lantus in
vials fresh from the pharmacist.

If you are stuck with a vial of damaged Lantus,  don't expect a lot of luck
with preloaded syringes.    However,   you don't see many of the damaged
Lantus complaints nowadays.

The preloaded syringe technique has a long and successful history when
applied to the other insulins.   Some folks choose it for your reason
(protecting the vial),   some for simple convenience when "shooting on the
road".    Also, there are many diabetics who cannot handle syringe loading
and thus rely on Visiting Nurses,  or plain old volunteers who show up at
their houses in order to preload syringes for use during the following 24-36
hours.

http://groups.google.com/group/misc.health.diabetes/browse_frm/thread/64d7ef
4a34b02122/800dcb5c3d85efba?lnk=st&q=lantus+syringe+group%3A*.*.diabetes&rnu
m=15&hl=en#800dcb5c3d85efba

short form of above:
        http://tinyurl.com/8gf9l

Here are some August, 2005  posts (on a forum of unknown provenance) which
argue against the technique.

http://www.felinediabetes.com/phorum5/read.php?8,143465,143779

One of the posters claimed that Aventis specifically advises against
preloading Lantus in syringes.

http://www.felinediabetes.com/phorum5/read.php?8,143465,143465#msg-143465

The question unanswered in these posts is whether the Lantus turned cloudy
or not.     Cloudy Lantus should be presumed to be  "bad" .   However,
nobody discusses giving the preloaded syringe a thorough exam under good
light before injection.

Regards
 Old Al