US$ 22.58
where should b12 shots be injected Injections at Home - Safety Guide for Self-Administration Best Vitamin B12 Injection Site:
Description
That said, it always pays to err on the side of caution and I wouldn't use out of date ones in somebody else, unless I had no option

Optimising trace mineral and vitamin B12 levels at critical times, like lambing, joining and times of oxidative stress, can have a positive impact on the health, immune status and reproductive capacity of livestock

This product is not intended to diagnose, treat, cure, or prevent any disease.)
Insurance payers routinely deny high-dollar claims simply because the clinical notes lack precise timestamps detailing the service duration
