just now reading this post on Nov 1, 2023, I am sorry for your development of glioblastoma. I have been concerned about research findings re: zolpidem . Have been in touch with main researcher , Dr. Daniel Kripke, California. I will not summarize his findings here as I may not be accurately interpreting the implications re: ambien/zolpidem. But his research may be of interest to you. Wish you well truly.