I have read here that you can take HCG subq or intramuscularly. My HRT doc told me to take it subq. However, on the instructions for my HCG perscription it says for "intramuscular use only". Why is this? The only answer my doc had to offer is don't worry you can do it both ways, but he didn't explain why. I am used to doing intramuscluar shots but have never done subq. I hope I am doing it right. I pinch some skin on the side of my stomach and stick the insulin needle in.