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Commercial drivers and rideshare operators face a 0.04% limit, as per the vehicle code 23152(d) & (e)
Same total amount, but more consistent levels throughout the week
Nevertheless, use of metformin may decrease vitamin B 12 status: a meta-analysis of four short-term intervention trials (up to 4 months duration) in patients with type 2 diabetes found that metformin use decreased serum cobalamin concentrations by 57 pmol/L, which could have clinical implications if such patients have suboptimal vitamin B 12 status (146)
Best B12 Injection Dose and Frequency So, what is the recommended B12 injection protocol
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