Feelings of nausea, a disrupted stomach, or diarrhea
The appointment would have to be given on the Monday
Just like other injections, a vitamin B-12 injection will have a minor stinging sensation at the time of treatment
A 2.5 mg dose equals 50 units (0.5 mL), which fills half a 1 mL syringe
Contraindications include known hypersensitivity to any component of the injection (including cobalt hypersensitivity), a history of severe reactions to thiamine/pyridoxine/cobalamin injections, and Lebers hereditary optic neuropathy (for B12-containing products)
If present, gently tap the syringe barrel with your finger to move the bubbles to the top, then slowly push the plunger until a tiny drop appears at the needle tip