b12 injections from canada Vitamin – 10 ml Multiple Dose Vials (6 pack) Vitamin B6/B12 Injections – Revita

Median time from initiation of platinum-based chemotherapy to randomization was 3.3 months (range 1.6 to 5.1 months) and 49% of the population achieved a partial or complete response to first-line, platinum-based chemotherapy

Do not use if solution is hazy or has a precipitate

That's in addition to, as mentioned by Gambit, excess alcohol causing issues with the liver which is the primary bodily store of B12

Calculate your desired dose and the corresponding volume before drawing

Nothing seemed to help me until I tried Vitamin B12 IV treatment

Pregnancy and breastfeeding contraindicate its use due to potential fetal effects