what's the difference between b12 injections and b12 pills Can you take a pill instead of shot? Is a Vitamin B12 Injection

Conversely, isoniazid and pyrazinamide (tuberculosis drugs) are structural analogs of niacin that can interfere with niacin metabolism, potentially precipitating pellagra in rare cases

How to Self-Administer a SubQ Injections This overview is for educational purposes only, and should not replace or substitute guidance from your provider

Niacin - Pregnancy and Breastfeeding Warnings

[13] Overall, for the majority of users the side effects are mild and temporary, but anyone experiencing persistent or severe symptoms should seek medical attention

If mood disturbances are severe or persistent, evaluation by a mental health professional is appropriate