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What Are Vitamin B12 Injections?

By Erin J. Hill
Updated: May 17, 2024
Views: 4,873
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Vitamin B12 injections are shots given with concentrated levels of the vitamin B12. This may be given in combination with other B vitamins in a B vitamin complex, or it may only contain B12. It is typically given to those who have a deficiency in this vitamin due to dietary imbalance or restrictions. Occasionally, vitamin B12 injections may also be used in the treatment of certain medical conditions. Typically, these shots can only be given by a medical professional.

The most common use of vitamin B12 injections is in the treatment of a vitamin deficiency. It is generally rare to have a true deficiency in this vitamin, but there are those who eat a very limited diet or a heavily processed diet who may need additional supplementation. Usually, supplements can be taken in oral liquid or tablet form, but more severe cases may require an injection. Vitamins which are delivered directly into a vein are usually absorbed more efficiently by the body.

Sometimes vitamin B12 injections are used to treat medical conditions. For instance, some doctors use high doses of B12 in the treatment of prolonged fatigue and certain circulatory disorders. There are no conclusive studies which prove that this method is effective for treating any disease, although some studies have suggested that low B12 levels can lead to health problems. Others also claim that the current daily recommended dose of this, and other, vitamins is much lower than what is actually required for optimum health. More research is needed to substantiate these claims, and patients are not advised to take higher B12 doses without a doctor's direct guidance.

Although it is very difficult to overdose on vitamin B12 injection or oral supplements, it is not advised that individuals up their daily dosage without a doctor's supervision. In certain cases, this could be harmful. This is especially true for those who are using supplements which also contain additional vitamins since there are some which can be hazardous when taken in large quantities.

It is possible to purchase vitamin B12 injections online from various pharmacies. This is not recommended, in part because there is no way to verify the purity and potency of many online drugs and supplements. Additional ingredients may be added which could be harmful for humans. Patients are advised to speak with a doctor or pharmacist before ordering drugs from any online pharmacy or retailer.

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