Vitamin B1, B2 and phosphatidylserine in combo, 400 mg of each a day have reduced my chronic cluster headaches. I am increasing my B1 to 700 mg per day to see if I get even more benefit. I have been doing this for 6 months as my own experiment and have been having less attacks and less pain during attacks. I am on no meds other than Eletriptan and Sumatriptan as needed. I stopped Emgality due to side effects. It was only slightly helpful for me, but is worth a try If you are a severe chronic. I will report again in 6 month. Best of luck to all!
