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Its normal to have some pain or bruising for a day or two where you injected the medication, depending on the medication

They measure how much B12 functions in the cells

These stool darkening factors include: Dietary factors- Consumption of dark foods like black liquorice, blueberries, or dark chocolate Iron supplements- A frequent, harmless cause of dark or blackish-green stool Bismuth Subsalicylate- A class of medications that is used for an upset stomach 2

These nonseroconverters include people on B-cell-depleting therapy or people with inborn errors of immunity, as these individuals are typically more susceptible to prolonged infection and higher rates of progression to severe disease [36, 37]

[50] [51] [52] [53] Diagnosis [edit] The insidious nature of PA may mean that diagnosis is delayed