Skip to Content

Cyanocobalamin Pregnancy and Breastfeeding Warnings

Cyanocobalamin is also known as: B-12, B-12 Dots, B-12 Resin, Big Shot B-12, CaloMist, Cobal 1000, Cobolin-M, Crystal B-12, Crystamine, Crysti-12, Cyanoject, Cyomin, Depo-Cobolin, Eligen B12, LA-12, Nascobal, Neuroforte-R, Rubesol-1000, Sytobex, Twelve Resin-K, Vibal, Vita #12, Vitabee 12, Vitamin B12

Medically reviewed by Last updated on Dec 6, 2019.

Cyanocobalamin Pregnancy Warnings

This drug should not be used during pregnancy unless the benefit outweighs the risk to the fetus. (AU)

AU TGA pregnancy category: Exempt
US FDA pregnancy category: C

-Vitamin B12 needs are increased in pregnancy.
-Megaloblastic anemia of pregnancy is usually due to folic acid deficiency.
-Do not use for megaloblastic anemia of pregnancy due to folic acid deficiency.

See references

Cyanocobalamin Breastfeeding Warnings

Use is not recommended; benefit to mother should outweigh risk to the infant. (AU)

Excreted into human milk: Yes

-Vitamin B12 needs are increased in lactation.
-Deficiency has been seen in breast fed children of vegetarian mothers, even with no symptoms of maternal deficiency.
-Four micrograms daily of B12 are recommended during lactation.

See references

References for pregnancy information

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. "Product Information. Cyanocobalamin (cyanocobalamin)." West-Ward Pharmaceutical Corporation, Eatontown, NJ.
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. Allen LH "Multiple micronutrients in pregnancy and lactation: an overview." Am J Clin Nutr 81(S) (2005): 1206S-12S

References for breastfeeding information

  1. "Product Information. Nascobal (cyanocobalamin)." Par Pharmaceutical Inc, Chestnut Ridge, NY.
  2. Cerner Multum, Inc. "Australian Product Information." O 0
  3. Ehrlich A, Koch T, Amin B, et al. "Development and reliability testing of a standardized questionnaire to assess psoriasis phenotype." J Am Acad Dermatol 54 (2006): 987.e1-14

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.