my daughter (15) was diagnosed with a permanent migraine by GOSH. She is also hypothyroid. She was recommended flunarizine but I understand that it is a selective calcium entry blocker with calmodulin binding properties and histamine H1 blocking activity; could this lead to issues such as osteoporosis? Can anyone direct me to scholarly research to assist my requests from GP for regular dexa scans to ensure she's fine? Plus, are there any more short or long term effects I should be worrying about?