iu conversion

I'm 25 years old, planned to start with hgh, but i am confused in measuring the dose. I have got lilly's 5mg humatrope vial (15ius) , mixed the powder and the water(other vial) with the slin pins, and injected 11units(read somewhere here on elitefitness that 5.5units=1iu so did 11) from the...