Weekly seems to be the popular choice. I need to go weekly but my insurance company wants to know why I need it and when I'll be all better. All better?! WTF! I'll never be better. Do they ask a diabetic when they can stop it already with all the shots! They seem to be leaning toward once a month to every 2 weeks. I'm not okay with either. I think I would stop going before I cut it down to that little.