I can't recall any stiffness as a result of the Eligard. I got my one (and only so far) shot just before Christmas. I work in a retail environment where the week or two before the holidays can be rather hectic, so any pain I experienced could be as much from the holiday strain as the drug.

As I've noted in other comments here, my biggest reactions to the Eligard was fatigue, which a second cup of coffee per day seems to have stopped, a lack of interest in anything sexual, probably due to the drop in testosterone, and a drop in my tolerance to alcohol. Not fun when you work at a liquor store!