Also consider this, different manufacturers of "short-acting" and "long-acting" respond differently within people's bodies. My daughter responded very different

Also consider this, different manufacturers of "short-acting" and "long-acting" respond differently within people's bodies. My daughter responded very differently between Humalog and Novolog even though they are both considered "short-acting". Another problem to factor in with costs is if you have a HSA (and some other insurance plans). Many of the insurance companies are forcing ppl to purchase their supplies through a handful of "authorized" medical suppliers. If you fail to purchase through them, they will not apply the costs against your deductible, which I think is completely BS. To add insult to injury, these "authorized" medical suppliers mark up the supplies substantially (compared to Costco and other pharmacies). Something is really broken in this model...