I wonder if they are slowly moving away from penfills as someone suggested. Seems pretty rare for some pharmacies, some I’ve called hadn’t even heard of penfills. I currently am using disposable but refillable (see Eric’s thread) kwikpen Jr (1/2 unit) and disposable Levemir pens, since my pharmacy doesn’t have penfills for either.
I have 2 humapen savvios (I assume cheaper replacement for Luxura HD). They’ve functioned fine, but I suspect less durable in the long run.