Hi mayblin, I'm starting on a very small dose of .05/0.14 mg per day with a plan to increase it gradually because I have epilepsy. My BTMs were tested in January, and will be done again next month. I'm also on Evenity, so it's being done primarily to monitor that. With the addition of HRT, I'm going to request it again for July. So, I guess, to answer your last question, the BTMs are being done every 3 months.