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headache from b12 injection Can a (cobalamin) or high-dose sublingual supplement provide immediate relief within minutes in a patient with severe functional B12 deficiency? headache after vitamin b12 injection
Description
The results timeline follows a predictable pattern

Although evidence is limited, some people at risk of Vitamin B12 deficiency may wish to take a supplement

doi: 10.1136/jcp.47.10.956

These include: Dietary adjustments to enhance natural B12 intake
1999;47:90410 (discussion 9101)
