---
title: "B12 injection dosage: uses, forms, safety"
description: "A B12 injection treats vitamin B12 deficiency. Dose and schedule vary by product and cause, so your clinician sets the plan and, with clinician guidance."
canonical: "https://www.vitalsvault.com/treatment-learn/b12-injection"
last-updated: 2026-08-22
---

# B12 injection dosage: uses, forms, safety

> A B12 injection treats vitamin B12 deficiency. Dose and schedule vary by product and cause, so your clinician sets the plan and, with clinician guidance.

---

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