INS and diabetes mellitus: People with diabetes on insulin regimensInsulin syringes or insulin pens may be used for insulin delivery with consideration of patient preference, insulin type and dosing regimen, cost, and self-management capabilitiesPeople with dexterity issues or visual impairmentInsulin pens or insulin injection aids may be consideredSmart pensSmart pens may be useful for some patients to help with dose capture and dosing recommendationsInsulin dose calculators/decision support systemsUS FDA-approved insulin dose calculators/decision support systems may be helpful for titrating insulin doses