is it safe to give yourself b12 injections Vitamin Injections: Good or Bad? Safe B12 Injection Guide at

[8] L-carnitine has been reported to potentiate the anticoagulant effect of warfarin through unknown mechanisms, with case reports documenting supratherapeutic international normalized ratios after initiation of parenteral carnitine in malnourished adults

Unlike a standalone B12 shot, lipotropic injections are designed with weight management in mind

Role of NF-B in ageing and age-related diseases: lessons from genetically modified mouse models

Medications that interfere with B12 absorption (e.g., metformin, proton pump inhibitors)

The second is dose and route translation : even where an effect is real in a mouse, the human-equivalent dose is not a simple body-weight scaling, and as the route section above stressed there is no human bioavailability figure to anchor an oral-versus-injected comparison

If you experience any adverse effects from your B12 supplement, stop taking it