b12 injection water soluble Vitamin - Energy & Vitality Cyanocobalamin (B12) Injection 1000 mcg/mL,

It is available in oral tablets and/or injection

Various versions have evolved over the years, sometimes by accident, sometimes on purpose (injected humour and the like)

Oral versus intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency: a pragmatic, randomised, multicentre, noninferiority clinical trial undertaken in the primary healthcare setting (Project OB12)

Depending on your outcomes and how well you tolerate the medication, your prescriber may recommend you move up to 2ml per week, or 1ml twice per week

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