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Í will be traveling this summer and fall on some trips where I will be unable to access a refrigerator/freezer for 2-3 days. I have a couple of simple insulin travel cases with cooling gel that is frozen to start but then quickly thaw and warm up. I normally keep my TriMix in my home freezer, so at about 32°F. I am considering buying a battery-powered cooler but it occurred to me that dry ice would be more effective and much cheaper. This raises a concern that dry ice is at about -100°F and now I worry this is too cold for trimix. Does anyone know if that is an issue?

Not sure but it seems that Frozen is frozen. Pehaps wrap some material around the vile so the dry ice is not in direct contact with the vile.

I'd ask the pharmacist.

Agree with Budward; sudden contact with dry ice might crack the glass vial.

I've travelled 5-7 days with Trimix, starting out refrigerated at 40F(4C), but then warming up to ambient, with no change in effectiveness.

You could test my result by leaving a pre-loaded syringe at room temperature for some days and doing a solo injection.

i have used dry ice many time, keeps the medicine frozen for me 100%, the only issue is getting enough dry ice for the time period you want to keep it frozen. It should say on the bag for how long if I remember...for instance, if you want to keep it frozen for 12 hours, then you need to find the dry ice that's equivalent to 12 hours.

totally works .....

used it when i was on trimix, this odd, but i have switched back to pills - guess my tolerance fell --so need to use trimix now.

just keep the trimix in the plastic bottle , even if you have the Styrofoam peanuts or whatever their called in the plastic container. It was totally fine for me, never had one issue.