Type 2 changed insulin manufacturer

about 4 months ago the insulin i was using became unavailable due to manufacturing problems my diabetes nurse changed me to a new one that was supposed to be the same but made by a different manufacturer anyway i swapped back and forth a few times then stayed on the new one but i am having huge problems keeping my blood sugars low, my question is do you get different results from different manufacturers, i am using humalog mix 25 now

Desbrina said:

i've changed from levemir to humalin I and my dose has doubled, i used to take 8 units twice a day now on 18 twice a day

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thank you i thought it was just me