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# B12 SHOT METHYLCOBALAMIN 5ML VIAL 25MG/ML INJ SOLN

## Product Information

**Drug:** Methylcobalamin (active form of Vitamin B12)

**Concentration:** 25 mg/mL (25,000 mcg/mL)

**Vial size:** 5 mL (total = 125 mg = 125,000 mcg)

**Route:** IM or IV when given in B Complex Plus

**Frequency:** Every 6 weeks DEPENDING ON BLOOD WORK UP

## Clinical Benefits

- Energy production & metabolism: coenzyme for ATP synthesis
- Nervous system health: supports myelin, neuropathy, cognition, memory
- Mood support: cofactor in neurotransmitter pathways
- Methylation & detoxification: works with folate in methyl cycle
- Red blood cell formation: prevents megaloblastic anaemia

## Safety & Precautions

- Very safe profile, water-soluble, excess excreted in urine
- Rare: acneiform eruptions, mild diarrhoea, anxiety, or restlessness at very high doses
- Pink-red urine common for 12–24 hours after infusion
- Always dilute — avoid undiluted IV push due to vein irritation risk

## Australia Injectable Drugs Handbook

https://aidh.hcn.com.au/browse/c/cyanocobalamin - No Incompatibilities

### STABILITY

Store below 25 °C. Protect from light. Do not refrigerate or freeze.1.

### REFERENCES

1. Product information. Available from www.tga.gov.au. Accessed 24/08/2022.
2. Lexicomp pediatric and neonatal dosage handbook. 29th ed. Hudson, OH: UpToDate Inc; 2022-2023.
3. ASHP Injectable drug information 2021. Bethesda, MD: American Society of Health-System Pharmacists; 2021.

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