Injectable vitamin B12: what is it for, how to use it and side effects


Injectable vitamin B12, also known as hydroxocobalamin or cyanocobalamin, is a B-complex vitamin prescribed for people who have a vitamin B12 deficiency. The lack of vitamin B12 in the body can occur due to nutritional deficiency or problems with the absorption of the vitamin.

The lack of this vitamin needs to be corrected, as it participates in important functions in our body, such as the formation of blood cells, muscle regeneration and still acts in the functioning of the nervous system. If a lack of vitamin B12 is not treated, it can result in serious health complications such as pernicious anemia.

Injectable vitamin B12 must be applied directly to the muscle by a healthcare professional. It is found in 2 mL ampoules with 5,000 and 15,000 mcg of vitamin B12.

This vitamin can be purchased in pharmacies and drugstores, upon presentation of a medical prescription, with the reference trade name Rubranova® or the similar Cronobê®, with the description of chronoactive cobalamin. Injectable vitamin B12 is quickly absorbed by the body and has a prolonged action that can last up to 10 days.

See what injectable vitamin B12 is for, how to use it, the possible side effects and for whom it is contraindicated.