vitamin B12
an important VITAMIN in the synthesis of NUCLEIC ACIDS , maintenance of MYELIN surrounding nerve fibres and in the production of red blood cells ( ERYTHROCYTES ). A deficiency produces ANAEMIA and degeneration of the nervous system.
Cyanocobalamin injection is used to treat and prevent a lack of vitamin B12 that may be caused by any of the following: pernicious anemia (lack of a natural substance needed to absorb vitamin B12 from the intestine); certain diseases, infections, or medications that decrease the amount of vitamin B12 absorbed from food; or a vegan diet (strict vegetarian diet that does not allow any animal products, including dairy products and eggs). Lack of vitamin B12 may cause anemia (condition in which the red blood cells do not bring enough oxygen to the organs) and permanent damage to the nerves. Cyanocobalamin injection also may be given as a test to see how well the body can absorb vitamin B12. Cyanocobalamin injection is in a class of medications called vitamins. Because it is injected straight into the bloodstream, it can be used to supply vitamin B12 to people who cannot absorb this vitamin through the intestine.
Full drug information on MedlinePlus →This is general information, not medical advice. Pregnancy and breastfeeding decisions should always be made with your healthcare provider.
Can taking vitamin B12 affect fertility or make it harder to get pregnant?
Taking vitamin B12 at the Recommended Dietary Allowance (RDA) is not expected to make it harder to get pregnant. It is not known whether having a vitamin B12 deficiency can affect the ability to get pregnant. Discuss your individual nutritional needs with your healthcare provider.
Does taking vitamin B12 increase the risk of miscarriage?
Miscarriage can occur in any pregnancy for many reasons. The fact sheet notes that taking vitamin B12 at the RDA is not expected to increase the chance of miscarriage, though some studies have associated low vitamin B12 levels with a higher chance of miscarriage. Because many factors can contribute, it is best to talk with your healthcare provider about your specific situation.
Does taking vitamin B12 increase the risk of birth defects?
The fact sheet states that taking vitamin B12 at the RDA is not expected to increase the chance of birth defects. Some studies have suggested that too little vitamin B12, or altered B12 metabolism, may be associated with an increased chance of neural tube defects or cleft lip/palate, while other studies have not found the same results. Your healthcare provider can help you understand what this means for you.
Can taking vitamin B12 during pregnancy cause other pregnancy-related complications?
According to the fact sheet, taking vitamin B12 at the RDA is not expected to increase the chance of pregnancy complications such as preterm delivery or low birth weight. However, vitamin B12 deficiency or low levels have been associated with preterm delivery in some research. Talk with your healthcare provider about monitoring your nutrient levels during pregnancy.
Can taking vitamin B12 during pregnancy affect the child's brain development, learning, or behavior?
The fact sheet indicates that taking vitamin B12 at the RDA is not expected to affect future behavior or learning for the child. It is not known whether a vitamin B12 deficiency during pregnancy can affect a child's behavior or learning. Your healthcare provider can discuss your individual nutritional needs in more detail.
Is it safe to breastfeed while taking vitamin B12?
Vitamin B12 is a normal component of breast milk, and the fact sheet advises continuing to get the recommended daily allowance while breastfeeding unless otherwise directed by a healthcare provider. If the breastfeeding parent is deficient in vitamin B12, an exclusively breastfed infant may have an increased chance of B12 deficiency, which can affect muscle tone, movement, blood counts, and skin/hair development. Talk with your healthcare provider and your baby's pediatrician about your specific needs.
Source: National Library of Medicine
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