can you overdose on b12 injection Symptoms of Overdose: Causes and When to Seek Help – Bolt Pharmacy Too Much B12 Symptoms: Overdose

Using the same needle can lead to increased risk of infection and pain

Rhode BM, Tamin H, Gilfix BM, Sampalis JS, Nohr C, MacLean LD

A burning or sharp pain during injection (this may indicate you've hit a blood vessel or muscle) Medication leaking out of the injection site Injection site reactions like bruising, swelling or redness that worsen after the injection Shortness of breath call 911 if this occurs The medication isn't having its intended effects, such as reduced appetite

28 However, oral therapy does not improve serum methylmalonic acid levels as well as intramuscular therapy, although the clinical relevance is unclear

Vitamin B-12 and Metformin Metformin is a biguanide medication that helps to reduce blood glucose concentrations in diabetics