I found this from the forum, just for you reference:
For bodybuilding, fat loss and general fitness. Some people take 6IU per day, however the higher the dose the more annoying the side effects can be. Carpal tunnel syndrome being the side effect which usually forces the athlete to lower the dose or pause the cycle for 2 - 3 weeks until the carpal disappears. It is preferred to spread the daily dose into multiple injections throughout the day. For example 2 IU in the morning and 2 IU in late afternoon.