vitamin b12 injections hydroxocobalamin B12 has been found to support healthy levels of nitric oxide Hydroxocobalamin - Wikipedia

You take it only when needed, 45 to 60 minutes before

Inositol supports the transport of fats and regulates insulin, promoting a healthy metabolism

Mild headache, fatigue or tingling sensations early on

Drug Interactions Several common medications reduce B12 absorption: Metformin (diabetes) significant reduction in B12 absorption Proton pump inhibitors (Omeprazole, Pantoprazole) reduce stomach acid needed for absorption H2 blockers (Ranitidine, Famotidine) similar effect to PPIs Colchicine (gout) may reduce B12 absorption If you take any of these medications long-term, B12 supplementation is strongly recommended

Blood (2014) 124:4727