do you need a script for b12 injections How to Give Injection: Step-By-Step Instructions Petition · PBAC, REMOVE RESTRICTIONS

doi:10.1016/s0022-3476(89)80717-6 [42] Nachtigall D, Nielsen P, Fischer R, Engelhardt R, Gabbe EE

Certain medications can interfere with B12 levels too

I would however mention that the sensitivity to alcohol can vary considerably between individuals, so the '21 units per week' is only a rough guide

Structured next steps and repeat testing Repeating the test is worthwhile when intake, a recent injection, acute illness, or a preanalytical issue, meaning a problem with the sample before it was measured, could explain the value, using the same laboratory or a comparable assay so the trend is interpretable

Prepared vials should remain refrigerated between 2-8C and protected from repeated temperature changes