Vitamin B1 B6 B12 Injection In addition to standalone vitamin B12 injections, some formulations combine vitamins B1, B6, and B12
Di Chiara G, Tanda G, Frau R, Carboni E (1993)
It is more likely to cause safety problems based on excessive doses or unmonitored injectable intake, rather than the daily supplementation
References Bramlett K, Onel E, Viscusi ER, Jones K
Redox dysfunction can affect their activity, and in particular reduced GSH or protein thiols react with and generate ROS, inducing ER stress (Hatahet and Ruddock, 2009
PMID 15173170