I was starting to feel pretty grim and wasn't keen on driving home feeling like that so I chose to take the risk and used an ampoule
Vitamin B12, Vitamin B6, Vitamin B complex which includes B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B7 (biotin), B9 (folate)
That's where treatments like injectable B12 for humans come into play
By continuing, you confirm that you are of legal age and are purchasing these products strictly for laboratory research purposes only
And of the few that exist (less than 10), they are either done in cell cultures or in rats
It is important to note, however, that in the case of medicines administered by injection, the MHRA is governed also by the foundational Medicines Act 1968 (now largely embodied in the Human Medicines Regulations 2012 )