I've found two Canadian sites that have U-100s and where the other syringe specs match what I have now.

I have sent the links to my vet to get her ok on them.

Also, I emailed the oncologist's assistant two links for Palladia. It runs about $8 - $10 per tablet and is much less expensive online. They need a prescription, of course. Crossing my fingers on that one.

Thanks!