This is more likely if you have difficulty absorbing vitamin B12 through the digestion system and, therefore, need an injection directly into your muscles and blood
These associations are most useful when corroborating findings are present, so the rest of the workup, not the B12 alone, determines how far to go
Conversely, isoniazid and pyrazinamide (tuberculosis drugs) are structural analogs of niacin that can interfere with niacin metabolism, potentially precipitating pellagra in rare cases
Levels naturally decline with age, chronic illness, and prolonged oxidative stress
It is important to disclose all your current medications, (including prescription medications and herbal products) with your doctor to prevent allergic reactions or adverse interactions