Well here is my thight if one like myself is so low on GH why would one care if it shuts down. Not doing GH messed up my heart I needed to have Heart Bypass Surgery. Dr. feel it was my low levels are them yrs of GH. As for sides sure if you do to much of it.
@mcs5309 3088 wrote:

In other words, as with all exogenous hormone use, does HGH use eventually shut down one’s own production??

The bodybuilding community has much to say back & forth on this topic, it is exhaustive to say the least. There seem to be many workarounds, but I wonder.

In addition, and no less a concern, a few of the the other side effects we read about all over the net:

cancer (if the good cells grow more, so can the bad ones)
fluid retention/hypertension
insulin resistance

Dr. M, let us know your thoughts!