Hi

A friend of mine has started on Etanercept - one of the relatively new
TNF alpha receptors drugs.

It's very temperature labile, and needs to be kept between 2 and 8
degrees Celcius (it's an IM injectable drug).

This is fine when she's at home with a fridge, but when travelling,
it's all of a bit of a race against time. Thermoses are OK, but only
work for a few hours, and the temperature can be somewhat unpredicable.

I can imagine something only a little more clever that could maintain
the temperature more accurately. In view of her rheumatoid arthritis -
the thing can't be very heavy.

Would really appreciate it if anyone has suggestions!