For most patients, lipotropic injections are generally well tolerated, but as with all medical procedures, some temporary side effects are possible, including soreness or wllng at the injection site, allergic reactions, gastrointestinal discomfort, headaches, light-headedness, and fatigue
By the time symptoms like pins and needles, numbness in the hands and feet, or balance problems appear, the deficiency may already have progressed to neurological damage
Formulations of cyanocobalamin injection containing benzyl alcohol as a preservative should also be avoided in premature neonates and those with hypersensitivity due to its association with gasping syndrome (10-12)
Many users find small insulin cooler bags ideal for this purpose
Report suspected adverse reactions to B12 supplements via the MHRA Yellow Card Scheme