My doctor prescribed HGH. I was given a prescription, it is Norditropin NordiFlex. Is anyone familiar with this pen? It is 10mg/1.5ml prefilled pen. His reccomendation is to start with 4 clicks for 2 weeks and then go to 8 six days a week. I have always heard of IU's. Each click would be .05mg so 4 clicks would be 2mg is that the same as 2 IU's?