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IM injections allow for slow absorption into the blood, providing a longer-lasting effect
The effect of parenteral vitamin B12
Physical activity guidelines for adults aged 19 to 64
Some patients feel as though they want more frequent injections, and occasionally we test levels to see if they are receiving adequate replacement, but Im not sure how strong the evidence is to support this. GPs should consider periodic vitamin B12 testing of higher-risk patients who take metformin, even if they dont display symptoms of deficiency, the UK medicines regulator said earlier this year
Refrigeration at 28 C is appropriate once the working timeline extends past a month
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