Mag, Be extremely cautious about this. My experience included 2 injections into the spinal fluid (epidural) for a back injury, and whether due to an allergy or other meds I was taking or whatever, I had a VERY bad experience, including extended dissociative episodes if you know what I mean. Find out if there's any way to tell in advance, maybe with a small dose, to see if you're going to have this problem, especially with regard to the family problem you mentioned, or if you are taking any medications remotely in that category.

Very seriously, Chet