I have been prescibed 900 x 0,5 mg Betanoid over the next 15 days- 16 three times a day for 4 days, 12 three times a day for 4 days, 8 three times a day for 4 days, etc untill finished. This is for a Glioblastoma Multiforte. Is this dosage to high and is it safe? Thanks, Dereen