can you drink alcohol with vitamin b12 injections Shots vs. IV Infusions: What is the difference? π§ Did you know that
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It is not necessary to withhold vitamin B12 therapy until the precise cause of B12 deficiency is established since absorption studies can be performed at any time
refrigerate PEER-REVIEWED EVIDENCE Kraus D, Yang Q, Kong D, et al
This vitamin actually plays a key role in red blood cell formation
co-administration of pyridoxine has been shown to reduce the blood levels of phenobarbital and phenytoin, possibly diminishing their anticonvulsant efficacy

Forum Support in reply to As an aside, we are unsure if the fatigue is purely down to B12 deficiency or if its long covid" If your B12 deficiency is not due to diet, I'd expect GP to at least test you for PA and Coeliac disease, two autoimmune conditions that can lead to B12 deficiency
Bari Life offers two supplements that contain vitamin B12, specially dosed to meet what you need after bariatric surgery