b12 injection what is it Sandoz Vitamin Injectable Solution - 1000 mcg/10 mL Benefits of Vitamin B12 Injections
Description
Sleep problems may be unrelated to B12 and require separate evaluation

This is especially relevant for people combining metformin with weight loss efforts see our guide on How to Ask Your Doctor for Weight Loss Pills for a full discussion of medication interactions

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Like B12 shots, oral supplements are generally safe (4), even if you take more than the recommended 2.4 pg/mL per day

however, recent studies have proposed that it may promote restful sleep

Safety: favorable profile
