For this reason, if you have a vitamin B12 deficiency, you may feel tired or weak. The good news is that B12 deficiency is generally easy to treat, either via supplement, injection or nasal spray.

Vitamin B12 oral medication. Vitamin B12 intramuscular injections (a shot that goes into your muscle). Vitamin B12 nasal gel. Vitamin B12 nasal spray.

If a person is unable to tolerate oral medication has persistent vomiting and is suffering from severe vitamin B12 deficiency ...

Vitamin B-12 has so many purposes and plays a vital role in our bodily functions. We need it, and the body will communicate ...