does vitamin b12 injections have side effects Injection and Safety Benefits of Vitamin B12 Shots

B12 can be administered once per week for sustained energy, cognitive support, and red blood cell production

Vitamin B12 deficiency If left untreated, vitamin B deficiency can harm your brain and nervous system, leading to issues such as: Incontinence (not being able to control your pee or poop) Nerve issues, such as numbness, weakness, or nerve pain Erectile dysfunction (not being able to get an erect penis) Paralysis (not being able to move your body) Memory loss Paranoia (feeling like others are trying to hurt you) If you dont have symptoms but are at risk of low B12 levels, your doctor might also want you to have regular tests

This is uncommon but might contribute to symptoms in some patients, particularly those taking certain medications like diuretics

And because the body doesnt store vitamin B12 for long, you must supply it on a regular basis