Read More: 17 of the Best Hangover Cures and Remedies Grant Chu, MD, MS, MBA, FACP Medical Reviewer Grant Chu, MD, is an associate clinical professor at the David Geffen School of Medicine at UCLA
When should you avoid vitamin B12 shots
This can lead to tiredness, weakness, and shakiness, as well as mood changes
Taking a large dose before drinking does not help stave off a hangover, as alcohol can reduce your absorption of B vitamins
Vitamin B12 injections may not be suitable for people who have a history of: allergic reaction or sensitivity to cobalt or vitamin B12 Leber disease kidney disease or impaired kidney function Also, vitamin B12 injections may not be necessary for people without a deficiency