Health Guide
Drug Guide

Vitamin B-12 (Cyanocobalamin) (By mouth)

Cyanocobalamin (sye-an-oh-koe-BAL-a-min)

Supplies your body with vitamin B12. You might need a vitamin B12 supplement if your body has trouble using the vitamin B12 in the food you eat. You also might need vitamin B12 if you are a vegetarian, if you have had part of your stomach removed, or for other reasons. Prevents pernicious anemia, a blood problem caused by a lack of vitamin B12. Cyanocobalamin is another name for vitamin B12.

Brand Name(s):

B-12-SL, Good Neighbor Pharmacy Vitamin B12, Leader Natural Vitamin B12, Mason Natural B-12, Nature's Blend B12, PharmAssure Vitamin B-12, Rite Aid Vitamin B-12, Sundown Naturals B12, Twelve Resin-K, Vitamist B12-500

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

You should not use this medicine if you have had an allergic reaction to vitamin B12 (cyanocobalamin), hydroxycobalamin, or cobalt (a metal).

How to Use This Medicine:

Capsule, Tablet, Long Acting Tablet, Lozenge, Dissolving Tablet, Liquid, Spray

If a dose is missed:

How to Store and Dispose of This Medicine:

Drugs and Foods to Avoid:

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

Warnings While Using This Medicine:

Possible Side Effects While Using This Medicine:

Call your doctor right away if you notice any of these side effects:

If you notice these less serious side effects, talk with your doctor:

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Last Updated: 12/12/2016

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