@ans I can only speak for forteo. The pen is quite sturdy. It might broke/crack if extreme force were to applied. The plastic or glass barrel which contains liquid forteo is covered by a thick plastic cap. You could also use the original container as an extra buffer (if you travel by air, you might need the prescription label for tsa in case they do a serious search). Manufacturer recommends to use the pen for 28 days once you start using it. The whole 28 day supply of forteo is in one pen, and you'd just use a new pen needle daily. It's said that the pen can have a commulative room temp exposure up to 30 hours ( based on my memory, I couldn't find the source right now)

An old medicine cooler bag for insulin might just work fine, you could experiment and check temp. I used 'disoncare 60h 4 insulin cooler travelcase' from Amazon for my travel purpose. The draw back is you need have a freezer at your night stop to freeze the biogel for next day use. Two thermometers were provided for you to monitor temp if you want to. There are times during long distant car travel when i had to get icebags at gas stations (had igloo with me).

Lately I saw amazon has a product that allow you to plug in use an usb,, product by 4allfamily. The cooler temp lasted longer, and what's more, there is a display for internal temperature reading! For someone travels a lot, especially international travel, it's worth looking into. There is a reviewer who is an engineerer, s/he explained how to use it in detail. Buying the right usb cord seems critical.