b12 injection where to give How self-inject intramuscular vitamin - Overview Instructions for B12 Injection |

Gently stretch or take a walk to get the blood flowing can help minimize pain

If your results show a mild deficiency and your GP confirms you dont have absorption issues, you can then try a high-dose sublingual spray for 3 months and re-test

Kit included everything you could need including clear instructions

Titrate by 150 mcg weekly

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For a 5mg target dose, the calculated volume is 5 26.5 = 0.189mL (18.9 units), slightly less than the 20 units you'd draw assuming exactly 50mg