November 19, 2023

What Are the Side Effects of Vitamin B12 Injections?

Vitamin B12 is an essential nutrient that fuels several vital body processes, including red blood cell formation and nerve cells maintenance. It is found naturally in foods, such as meat and dairy products. It is also available as a prescription injection to treat severe deficiency. This injection is administered intramuscularly or subcutaneously and is usually used in patients who cannot absorb the vitamin through their intestines.

The most common side effect of a B12 injection is pain, tenderness or swelling at the injection site. The discomfort typically lasts for a few days but should subside soon after treatment. Moreover, this injection can have serious effects if it is not administered properly, so patients should get it from a medical professional who follows strict pharmacy regulations.

Generally, cyanocobalamin is well-tolerated in most people. However, it can cause allergic reactions. People who are sensitive to the ingredient benzyl alcohol, which is often present in B12 shots, should avoid this medication. Moreover, it is not recommended for people with kidney problems or Leber hereditary optic neuropathy (a condition that affects the optic nerve).

B12 injections can improve your overall health by treating a vitamin deficiency. If you have a B12 deficiency, talk to your doctor about the injections. They may prescribe methylcobalamin, which is safe for most people. Contact us today for more information or to schedule an appointment with one of our providers.


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