Vitamin B12 (Cyanocobalamin)

Trade name

Cyanocobalamin (Biological Therapies)

Presentation and preparation

2 mg/mL (volume: 1 mL)

IV administration

Never administer intravenously.

Other routes of administration

IM is the preferred route.

IM: Suitable. Give undiluted by slow, deep intragluteal injection. Warm solution to body temperature prior to use.

SC: Suitable. Give undiluted by deep SC injection. 

Additional information

Consider an intradermal test dose before administration in patients who may be sensitive to cobalamins.

Solution should be clear and red.

Discard any unused vial contents.

Protect from light during storage.


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