Melatonin, agomelatin, imipramine, amitriptyline or something different?
As I can see, many patients take 20mg of melatonin before bedtime.
However, as written in CUSPND
"Agomelatine’s circulating half-life in humans is ~2hours versus 30 to 40 minutes for melatonin. This is a significant advantage of agomelatine. Further complicating the use of melatonin would be the variable and generally poor absorption after oral administration. Agomelatine penetrates the blood-brain barrier."
This study (https://www.ncbi.nlm.nih.gov/pubmed/28500556) compared agomelatine and other drugs and concluded that the most effective for glioblastoma - imipramine or amitriptyline.
However, here (https://www.ncbi.nlm.nih.gov/pubmed/27480195) on the contrary it is reported "that imipramine and tranylcypromine reduced the cytotoxic efficacy of temozolomide under some oxygen conditions while fluoxetine did not demonstrate such effects".
So which of these drugs should be added to the cocktail before bedtime?