Metanx :
Each Metanx® tablet contains:
L-methylfolate 2.8mg (special folate)
Pyridoxal 5'-phosphate 25mg (special B6)
Methylcobalamin 2mg (B12)


This combination was designed primarily for people with genetic failures to convert vitamins, or who have diabetic or deficiency neuropathy.

You appear to have an injury. What I'd suggest you do for now is take 2 of the B12 you have now, and take it on empty stomach so it can be absorbed well. This is the main active ingredient for Metanx. The other two vitamins may help older people who have long standing chronic issues. You may not need the other two vitamins at this time.

You have already posted that you are feeling better. So that is a good sign.
And I agree with cyclelops that your use of diazepam may be creating a NEW situation with you...that you may be tolerant of it and getting habituated on it. In US this would not be used for muscle relaxant issues or anxiety. It is very addicting.