I'm anxious for the answer! Just told hubby I may be playing with needles, syringes and measuring spoons/cups one of these days to find the right answer! LOL
First round I used 50 unit insulin syringes, 1/2 cc...I went to 20 units for 200 iu's, 15 units for 150iu's etc.
This time I have a 20 unit insulin syringe, still 1/2 cc syringe!!