how to vitamin b12 injection Shots at Home: How, Where & Often Inject Yourself Methylcobalamin Injection (Vitamin B12) |

Liver Disease: Individuals with liver disease may have impaired vitamin B12 metabolism, and injections may need to be closely monitored

Regular monitoring and adjusting the dosage may be required for individuals with these conditions

Dispose of the needle properly

Patients with vitamin B12 deficiency and concurrent renal or hepatic disease may require increased doses or more frequent administration of methylcobalamin

Some patients have also experienced a hypersensitivity reaction following intramuscular injection that has resulted in anaphylactic shock and death

The use of methotrexate may additionally invalidate diagnostic assays for folic acid and vitamin B12